How do you factor the expression #15x^2-14x+3 #?
1 Answer
May 12, 2016
Explanation:
Use an AC method:
Find a pair of factors of
The pair
Use this pair to split the middle term and factor by grouping:
#15x^2-14x+3#
#=15x^2-9x-5x+3#
#=(15x^2-9x)-(5x-3)#
#=3x(5x-3)-1(5x-3)#
#=(3x-1)(5x-3)#
