Question

Tolong bantu di jawab

Answer 1

A. 3^(x²-5x-6) = 1
3^(x²-5x-6) = 3°
jadi
x²-5x-6 = 0
(x+1)(x-6) = 0
x+1=0 atau x-6=0
x=-1           x=6

b. 5^(x²-2x-18) = 1/125
5^(x²-2x-18) = 5⁻³
jadi
x²-2x-18 = -3
x²-2x-18+3 = 0
x²-2x-15 = 0
(x+3)(x-5) = 0
x+3=0 atau x-5=0
x=-3            x=5