Question

If x =-2 solution of the equation 2 X square + 5 x- 12 = 0

Answer 1

Answer:

Step-by-step explanation:

2(-2)^2 + 5(-2) - 12 = 0

= 2.4 - 10 - 12 = 0

= 8 - 22 = 0

Contradiction hence FALSE

Answer 2

Answer:

Step-by-step explanation:

2x²+5x-12

2(-2)²+5(-2)-12

8-10-12=-16 (ans)