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

1 Answer
EZ as pi · sibi
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.

Related questions
Impact of this question
9527 views around the world
You can reuse this answer
Creative Commons License