How do you factor: y=x2+7x+12?
3 Answers
Explanation:
Explanation:
the factors of + 12 which sum to + 7 are + 3 and + 4
⇒x2+7x+12=(x+3)(x+4)
Explanation:
If a quadratic with
When factorising that has
I usually start by listing the factors of the third term which is
As
As
With all of the signs being positive within
Remember you can always expand each term to check:
This is the same as what we started with, therefore, it is correctly factorised.