How do you factor #3x^2 + 27x + 60#?
1 Answer
Sep 18, 2017
Explanation:
#"take out a "color(blue)"common factor ""of 3 "#
#rArr3(x^2+9x+20)#
#"to factorise the quadratic in the bracket"#
#"the factors of + 20 which sum to + 9 are + 4 and + 5"#
#rArr3x^2+27x+60=3(x+4)(x+5)#
