Math olympiad problem | This trick is best to solve exponential equation |

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  • Опубликовано: 24 янв 2025

Комментарии • 4

  • @saurabhpatel1535
    @saurabhpatel1535 Месяц назад +1

    3. This one's easy. Solved in 2 sec.

  • @N8570E
    @N8570E 2 месяца назад

    x = 3: 5 to the power of 3 is 125 and 125 plus 3 is 128.
    Thanks. May you and yours stay well and prosper.

  • @wowyourereallyreadingthis
    @wowyourereallyreadingthis 5 месяцев назад +1

    its 3.

  • @oahuhawaii2141
    @oahuhawaii2141 4 месяца назад

    5ˣ + x = 128
    5ˣ = 128 - x
    LHS: Power curve from above the asymptote of 0 for x < 0 , climbs to 1 at x = 0 , and goes unbounded for x > 0 .
    RHS: Line sloping down from (0, 128) to (128, 0) .
    They intersect only once.
    5³ = 128 - 3
    125 = 125
    x = 3