Question

Is x=-4 a solution of the equation 2x^2+8x-12=0?

Answer 1

here your answer dear let x-4=o

x=4

2x (2+8x)-12=0

2(2+8(4)-12=0

4×34-12=0

134-12=0

122

Answer 2

Hey buddy your answer is here

Let's take x = -4

P(x)= 2x² + 8x - 12 = 0

= 2 *(-4)² + 8*(-4) -12 = 0

= 2*16 + 384 = 0

= 32+384 = 0

= 416 = 0

.•. -4 is not equal to 0