Question

(2) Decide whether x = 2 is a solution of x² + 4x - 12 = 0.​

Answer 1

Answer:

$x=2$ is not a solution.

Step-by-step explanation:

Put $x=2$.

If the equation is not true, $x=2$ is not a solution.

$(-2)^2+4*(-2)-12=4-8-12=-16$ ≠ $0$

∴$x=2$ is not a solution.