Find the Roots (Zeros)

Question

12x³+100x=0

Answer 1

That equals 4x(3x to the second power + 25) = 0

Then 4x = 0, so x = 0 (that’s one root)

Then 3x to the second power = -25

x to the second power = -25/3

x = the square root of - 25/3, = 5i times the square root of 1/3 (that’s the second root)