Solving Rational Equations and Factoring Trinomials - SAT Math Part 3

This SAT math video explains how to solve rational equations in addition to factoring trinomials.
SAT Math Part 4: • Solving Radical Equati...
SAT Chemistry Part 1:
• Video
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How To Factor Trinomials:
• Factoring Trinomials T...
The Greatest Common Factor:
• How To Factor The Grea...
Difference of Squares & Sum of Cubes:
• Factoring Binomials Wi...
Factoring Perfect Square Trinomials:
• Factoring Perfect Squa...
How To Factor By Grouping:
• Factor By Grouping Pol...
Cubic Polynomials:
• Factoring Cubic Polyno...
_______________________________________
Solving Quadratic Equations By Factoring:
• How To Solve Quadratic...
Quadratic Equations Completing The Square:
• How To Solve Quadratic...
How To Factor Difficult Quadratic Equations:
• How To Factor Difficul...
Hard Factoring Examples:
• Factoring Trinomials &...
Factor Completely - Multiple Variables:
• How To Factor Complete...
Factoring Higher Degree Polynomials:
• Factoring Higher Degre...
_______________________________________
Factoring Trinomials With Large Numbers:
• Factoring Trinomials W...
Factor Trinomials With Negative Exponents:
• How To Factor Trinomia...
Factoring - Rational Exponents:
• Factoring Algebraic Ex...
Factor Theorem and Synthetic Division:
• Factor Theorem and Syn...
Finding All The Zeros of a Polynomial:
• Finding All Zeros of a...
Real and Imaginary Solutions:
• How To Find The Real &...
_________________________________________
Final Exams and Video Playlists:
www.video-tuto...
Full-Length Videos and Worksheets:
/ collections

[@TheOrganicChemistryTutor]

Full 8 Hour SAT Video on Patreon: bit.ly/3sadcH0
Printable PDF - 150 Test Questions: bit.ly/3hbd1Vy
Final Exams and Video Playlists: www.video-tutor.net/
Full-Length Math & Science Videos: www.patreon.com/mathsciencetutor/collections

[@logicxmagic]

whoever you are, bless you for these amazing videos. i hope you are doing well.

[@alex4shorts]

Thank you so muchh 💙💙💙
Your videos really help me

[@gkwise9940]

Great vid
Who else is writing the may sat

[@jackwilson4324]

The second one I factored, then used partial fraction fractions, cross multiplication, and then completed the square which gave the equation/expression (x-4)^2 - 4 = 12, and then added 4 to both sides which is (x-4)^2 = 16, and then took the square root of both sides, getting x-4 =4, and the added 4 again to both sides, leaving me with X = 8, and I thought it was all wrong but it turns out it wasn't.

[@MrPrado-nc6qq]

How do I get to remember all of this ?
Also there are many questions that have the same information. How would I then be able to distinguish?

[@0xVENx0]

practice, practice and practice!

[@hadiamahmood2911]

For question 14 we can just put the options in the question and if the both sides match.IF they match then we have our answer.

[@warkaduhurnimochennal7679]

in question 14 you can just plug the answer choices with x and check which one will set the two equations equal to each other I think that is much better than the long way since sat test is all about time management
10/-5 -2= -4 and the other equation -5+1=-4
and obviously since x=y then -4=-4 is right

[@Luca-ky8mi]

Long way? It took me 20 seconds bro

[@musa930]

@@Luca-ky8mi how??

[@abdi-yarenouniho9386]

thank you. please prepared more sat math

[@cesarl9670]

This is gold thank you

[@samiakhan5843]

Thank you for this🌟🌟🌟

[@pianobysarochka728]

Thank you sooo much 💚

[@danishhassan9702]

Welcome 😉

[@JUnknownC]

For #15, I still don’t get why (x+4) is cancelled out. Can someone please explain? He said something about 1/0 & undefined, how is (x+4) undefined?

[@juju7967]

its cancelled out since (x+4) is dividing on itself, and anything divided by itself is 1.
also, the denominator can't be 0 as 1/0 is undefined (you can see on your calculator it shows as math error). so, if x was -4, and you put -4 as x in (x+4) it would be (-4+4) = 0, making the fraction undefined, meaning -4 cant be a possible solution of x

[@yusefalkafaji9308]

:) luv this guy

[@btsbcmanimanitheycallmenew4534]

First to comment!!!! Thx you for the video 👍

[@hajeranawabi250]

Thank you

[@exeggutivejudge3747]

Hey for #15, for the negative solutions, does it matter what integers the factors are?

[@evilice6693]

Not necessarily, but they always have to add up to the second coefficient and must always be a trinomial

[@liliatijerina2580]

Will this help for tsi as well

[@jackwilson4324]

I meant partial fractions

[@waleedchouai7454]

For number 15 can I also multiply both sides by (x-2) to get rid of the denominator?

[@hettyhitty3204]

yea

[@alex4shorts]

Can u do a video about aerobic respiration please ??

[@saigey]

god bless you

[@AbdulMoiz-rp9fo]

These are most easy questions. I don't think so the exam will be easy like that.

[@ME-mi9mk]

In number 14 I tried the the numbers given and it turned out the same answer so I don’t have to do all that right

[@R-rr1]

Too much work😂

[@HannahEdmund]

Why’d you move everything on the right side in question #14

[@angelali5502]

I am not an expert but it’s to combine like terms I think.

[@grilledcheese1340]

I think it was to combine like terms and then factor so that when you solve for x, you would easily get the answer (since it's set to 0).

[@josephm467]

why did we set every variable (x) to 0 at the end?

[@grilledcheese1340]

so that you can factor and easily get the answer. When something is set to 0, you will find the answer quickly. Plus, there were no constants you could really use either

[@rexpam7492]

Number 15 was complex and annoying 😂

[@MrPrado-nc6qq]

What the hell