How do you factor x^ { 2} + 3x - 54?

1 Answer
Oct 20, 2016

(x-6)(x+9) are the factors of the quadratic.

Explanation:

x^2 +3x - 54 is called a quadratic trinomial.

Find factors of 54 which differ by +3

= x^2 - 6x + 9x - 54

= x(x - 6) +9(x -6)

=(x-6)(x+9)

These are the factors of the expression.