Question

Tlg bantu nomor 5 gan
Tentang eksponen

Answer 1

Misal:
2^x = a
2^y = b
maka:
4a² + b = 20
a/2 - b = - 3
_________ +
4a² + a/2 = 17
8a² + a - 34 = 0
(8a + 17)(a - 2) = 0
a = - 17/8 atau a = 2
ambil a = 2 maka b = 4
2^x = 2 maka x = 1
2^y = 4 maka y = 2
x + y = 3