Question

is x=-4 is a solution of 2x square +5x-12=0

Answer 1

Answer:

If x = (-4)

Putting the value of x in the below equation....

$2x {}^{2} + 5x - 12 = 0$

$2( - 4) {}^{2} + 5( - 4) - 12 = 0$

$2 \times 16 - 20 - 12 = 0$

$32 - 20 - 12 = 0$

$32 - 32 = 0$

As the answer is zero, Therefore (-4) is the solution.

Answer 2

Answer:

MARK AS BRAINLIST.....