Question

please sovle this equation​

Answer 1

Answer :

16 or 9

Step by step explaination

let y = x² , than

x² - x = 12

x² -x -12 = 0

x² -4x +3x -12 = 0

x(x-4) +3(x-4) = 0

(x-4) (x+3) = 0

x = 4 or -3

since y= x²

therefore

y = 16 or 9