(2) Answers
First you put the a's together and the normal numbers together (5a)(2a)-(7)(-1) Then you multiply 10a-(-7) Then you add 10a+7 Then you have your answer
(5a-7) (2a-1) = -19a
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First you put the a's together and the normal numbers together (5a)(2a)-(7)(-1) Then you multiply 10a-(-7) Then you add 10a+7 Then you have your answer
(5a-7) (2a-1) = -19a