Question

Jika 2^(2x-1)-1=2^(x-1) maka 8^x=....

Answer 1

Misal: 2^x = a
a²/2 = a/2
a² - a = 0
a(a - 1) = 0
a = 0 ⇒2^x = 0 (tdk ada x yg memenuhi)
a = 1 ⇒ 2^x = 1 maka x = 0
8^x = 8^0 = 1