How do you factor #5y ^ { 4} - 10y ^ { 3} - 75y ^ { 2}#?
1 Answer
May 4, 2018
Explanation:
#"take out a "color(blue)"common factor " 5y^2#
#=5y^2(y^2-2y-15y)#
#"the factors of - 15 which sum to - 2 are - 5 and + 3"#
#=5y^2(y-5)(y+3)#
