Chapter Test
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The product of the sum and difference of the same two terms is the difference of their squares.
9g^2-25
Recall that the product of the sum and difference of the same two terms is the difference of their squares.
Commutative Property of Multiplication
(a+b)(a-b)=a^2-b^2
(a * b)^m=a^m* b^m
Calculate power
Notice that the expression is already written in standard form, since the terms are arranged by degree in descending order.