Question

(3) 2a + 4 = 0,
a = 2,-2,1​

Answer 1

Answer:

okkk..................

Answer 2

Answer:

-2

Explanation:

Let, a=2

then, 2×2+4=8≠0

Let, a=-2

then, 2×-2+4=-4+4=0=0

so, a=-2

I hope it help you......