Question

Minta to long yg nomer 21 dong..

Answer 1

Cttn : ^ adalah pangkat
√2^x+3 = (1/4) pngkat x+4
2^(x+3)/2 = (1/2^2) ^ x+4
2^(x+3)/2 = (2^-2) ^x+4
2^(x+3)/2 = 2^ -2x-8 (2 nya di coret mnjadi)
x+3/2 = -2x-8
x+3 = (-2x-8)×2
x+3 = -4x--16
x+4x = -16-3
5x = -19
x= -19/5