X^2-3x-18/x+3? Simplify

2 Answers
May 20, 2018

x+6

Explanation:

(x^2-3x-18)/(x+3)

we need to factor first, the denominator will not factor but the numerator factors to:

((x + 3) (x - 6))/(x+3)

now cancel the factor x+3 and we have the solution:

x+6

May 20, 2018

(x^2-3x-18)/(x+3)=x-6

Explanation:

Firstly you need to factorize x^2-3x-18
x^2-3x-18=(x+3)(x-6)

Then you divide by x+3
[(x+3)(x-6)]/(x+3)=x-6