Question

How do you solve `18x^2+48x=-32`?

Answer 1

Double-root: at `x = -4/3`

Explanation:

Bring the equation to standard form after simplification by 2
`f(x) = 9x^2 + 24x + 16 = (3x + 4)^2 = 0`
The 2 roots are: `+- (3x + 4) = 0`
There is double-root at `x = - 4/3`