How do you multiply #(sqrt4 - sqrt9) * (sqrt4 + sqrt9)#?
1 Answer
Jun 12, 2018
Explanation:
#"simplify the factors"#
#(sqrt4-sqrt9)(sqrt4+sqrt9)#
#=(2-3)(2+3)=-1xx5=-5#
#"simplify the factors"#
#(sqrt4-sqrt9)(sqrt4+sqrt9)#
#=(2-3)(2+3)=-1xx5=-5#