Question

How do you solve `x^2 + 2x = 0`?

Answer 1

`x = -2 or x=0`

Explanation:

Although there are only 2 terms, the equation is still a quadratic.
Always check to see if it factorises. There is a common factor.

`x(x+2) = 0`

Either factor can be 0.

`x +2 = 0" or " x=0`

`x = -2 or x=0`