How do you simplify #(2a-2)/(a^2-3a-28)#?
1 Answer
Jul 24, 2018
Explanation:
#"Simplify by factorising numerator/denominator"#
#2a-2=2(a-1)#
#"The factors of "-28" which sum to "-3#
#"are "-7" and "+4#
#a^2-3a-28=(a-7)(a+4)#
#(2a-2)/(a^2-3a-28)=(2(a-1))/((a-7)(a+4))#
