Question

A classmate says that the expression -5r(6s) can be expanded to - 30r - 5rs. Explain his error

Answer 1

-5r(6s) would be -30rs because everything outside of the parentheses must be multiplied by everything inside the parentheses. -5r times 6s would be -30rs because -5 times 6 is thirty and when combining variables for an answer you would get rs whicg combine for -30rs