A awesome mathematics exponential problem | Olympiad Question | x=?

[@HuzaifaKhan-m3i]

❤❤❤❤❤❤

[@NaeemKhan-q6w1v]

Good

[@AfsarSaid-f8s]

question very good sir

[@jeffreyhudale5633]

X=-4

[@gregevgeni1864]

Another approach.
75-10x-x² ≠ 0, x≠-5 and x≠-1/15
75-10x-x²= 99 and 1/(x+5)² =1 => ..
x = -6 or x =-4.

[@RealQinnMalloryu4]

(7.5 ➖ 1x ➖ 10x1 ) (7.5 ➖ 1x ➖5^5x^1) (3^4.2^3 ➖ x ➖ 2^3^2^3x ) (1^2^2.1^1 ➖ x ➖ 1^1^1^3x) (2^1 ➖ x ➖ 1^3x ) (2 ➖ x ➖ 3x ) (x ➖ 3x+2).