How do you simplify #(sqrt10-5)(sqrt10+2)#?
1 Answer
Jul 24, 2018
Explanation:
#"note that "sqrtaxxsqrta=a#
#"Expanding the factors using FOIL"#
#=(sqrt10)^2+2sqrt10-5sqrt10-10#
#=cancel(10)-3sqrt10cancel(-10)=-3sqrt10#
