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Find the product. (7 q - 5)(7 q + 5) 49q^2 - 10q - 25 49q^2 + 10q - 25 49q^2 - 25

Find the product. (7 q - 5)(7 q + 5) 49q^2 - 10q - 25 49q^2 + 10q - 25 49q^2 - 25
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Find the product. (7 q - 5)(7 q + 5)

49q^2 - 10q - 25
49q^2 + 10q - 25
49q^2 - 25

User Jessiica
by
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1 Answer

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Use\ (a-b)(a+b)=a^2-b^2.\\\\(7q-5)(7q+5)=(7q)^2-5^2=\boxed{49q^2-25}

User Lazy
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