Question

2^x+2+2^x-1=9:solve it

Answer 1

Here is your answer

x^2 + x^2 + 2 - 1 = 9

2x^2 +1 = 9

2x^2 = 9 - 1

2x^2 = 8

x^2 = 8÷2

x^2 = 4

x = + 2 or x = - 2

Hope it helps you.