Question

For what values of x is x2 + 2x = 24 true?

Answer 1

X2+2x=24

[(6)2]+[2(6)]=24
[12]+[12]=24

Answer 2

$x^2 + 2x = 24$ 

$\text{Factor} \ {x}^{2}+2x-24$ 

$(x-04)(x+6)=0$ 

$x=4,-6$ 

$-6 * 4 = -24$