Is it possible to factor y=2x2+5x−3? If so, what are the factors?
1 Answer
May 29, 2018
Explanation:
using the a-c method to factor the quadratic
the factors of the product 2×−3=−6
which sum to + 5 are + 6 and - 1
split the middle term using these factors
2x2+6x−x−3←factor by grouping
=2x(x+3)−1(x+3)
take out the common factor (x+3)
=(x+3)(2x−1)
2x2+5x−3=(x+3)(2x−1)