Question

the solution(2x-1)square=9is equal to​

Answer 1

Answer:

3

Step-by-step explanation:

Answer 2

Answer:

x = 2 , -1

Step-by-step explanation:

$(2x - 1)^2 = 9 \\ 4x^2 + 1 - 4x = 9 \\4x^2 - 4x - 8 = 0 \\4(x^2 - x - 2) = 0 \\x^2 - x - 2 = 0 \\x^2 - 2x + x - 2 = 0 \\x(x - 2) + 1(x - 2) = 0\\(x - 2)(x + 1) = 0 \\x = 2,-1$