SOLUTION: Find the product. (x - 4y)(5x

SOLUTION: Find the product. (x - 4y)(5x - 9y)

Question 166366: Find the product.
(x - 4y)(5x - 9y)
Found 2 solutions by jim_thompson5910, MRperkins:
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

So
Answer by MRperkins(300) (Show Source): You can put this solution on YOUR website!
Use the FOIL method:First*First+Outer*Outer+Inner*Inner+Last*Last
in this case x is the first term of the first binomial and 5x is the first term in the second binomial.
(x*5x)
+
x is the outermost term in the first binomial and (-9y) is the outermost term in the second binomial
(x*-9y)
+
(-4y) is the innermost term in the first binomial and 5x is the innermost term of the second binomial. So,
(-4y*5x)
+
-4y is the last term in the first binomial and -9y is the last term in the second binomial. So,
(-4y*-9y)
.

or

combine like terms and you get your final answer:
.
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