Question

X² + x = 12




show the steps please​

Answer 1

Explanation:

=> 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 = 3 , -4

Answer 2

x1 = -4

x2 = 3

Explanation:

`x^(2) + x = 12\\x^(2) +x-12=0\\x^(2) +4x-3x-12=0\\x*(x+4)-3(x+4)=0\\(x+4)*(x-3)=0\\x+4= 0 \\x-3=0\\x=-4 \\x=3\\x1=-4 \\x2=3`