Question

Hasil
-8^-2/3 =
log 10^1/3 =
7x^-1/2 = 4
2^2x+3 = 1
log (3x^2 + 2x - 4) =
3^× = 243

Answer 1

-8^-2/3 = -(2³)^-2/3 = -2^-2 = -1/4
log 10^(1/3) = 1/3 log 10 = 1/3
7/√x = 4 ⇒ √x = 7/4 maka x = √(7/4) = (1/2)√7
2^(2x + 3) = 1 ⇒ 2^(2x + 3) = 2^0
                            2x + 3   = 0
                                    x  = -3/2
3^x = 243
3^x = 3^5
x = 5