Question

4^×+1 + 11 X 2^× -3 = 0
bantuin dong

Answer 1

4ˣ⁺¹ + 11 .2ˣ - 3 = 0
4. 4ˣ+ 11.2ˣ  - 3 = 0
4.(2ˣ)² + 11 (2ˣ) - 3 = 0
misalkan 2ˣ = a 
4 a² + 11a - 3 =0
(4a - 1)(a + 3) = 0
a = 1/4 atau a = - 3 (tm)
..
2ˣ = 1/4 = 2⁻²
x = -2