Question

How do you find the roots for `x^2+16x = 0`?

Answer 1

`x = 0` or `x = -16`

Explanation:

`x^2+16x = 0`

first factor out the `x`:

`x(x+16) = 0`

now using the algebra rule: `a*b=0` then either `a=0` or `b=0`

`x = 0`
or
`x +16 =0`

so `x = 0` or `x = -16`