Question

Quadratic equations x^2+9x+18=0

Answer 1

Explanation:

You need two numbers that add to 9 and multiply to 18. There are not many things to try. 2 and 9 multiplies to 18, but it does not add to 9

The answer should be 6 and 3 which works perfectly. So the factors are

(x + 3)(x + 6)