Question

4^2x^2-4 = 1, sendo a resposta 0;2​

Answer 1

4^2x^2-4x = 1

4^2x^2-4x = 4^0 ==> mate a base 4

2x^2-4x = 0 ===> :(2)

x² -2x= 0

x(x-2)= 0 ==> x'=0 ✓

(x-2) = 0 ==> x=2 ✓