Question

how to solve this question? i have to have 3 solutions

Answer 1

The picture is a bit blurry but what I saw was 8a^3+27=0

8a^3+27=0 first you move 27 to the right side of the equation

8a^3=-27 then you divide both sides by 8

a^3 = -27/8 then take the cubed root of both sides

a= -3/2

Hope that helps ;)