How do you factor #4x^2-32x+60#?
2 Answers
Mar 3, 2018
factor out 4
what numbers add up to -8 and multiply to 15?
-3 and -5
Mar 3, 2018
Explanation:
We can write that trinomial as
Now,
Knowing that
We can deduce
Substitute it into the original expression :
That is a difference of squares, so we can factor it out as: