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put this solution on YOUR website! (6a-5y)(7a+3y)
Distribute the red parenthetical expression
taken as a whole, into the blue parenthetical
expression:
(6a-5y)(7a) + (6a-5y)(3y)
Reverse the order of multiplication in each
of the two terms:
7a(6a-5y) + 3y(6a-5y)
Now distribute the blue factors into the red
parenthetical expressions, getting these purple
terms:
42a²-35ay + 18ay-15y²
42a² - 35ay + 18ay - 15y²
Combine the middle two like terms as -17ay
42a² - 17ay - 15y²
Edwin
