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OpenStudy (anonymous):
Whats the product of (7x − 3)(7x + 3).
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OpenStudy (diyadiya):
\[\Huge (a-b)(a+b)=a^2-b^2\]
OpenStudy (diyadiya):
\[\Large (7x-3)(7x+3)= \ \ ?\]
OpenStudy (diyadiya):
@Aaron0620
OpenStudy (anonymous):
49x2 - 9 2?
OpenStudy (anonymous):
49x2 + 9?
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OpenStudy (diyadiya):
Yes!\[\Large (7x)^2-(3)^2= 49x^2-9\]
OpenStudy (anonymous):
thank you :)
OpenStudy (diyadiya):
welcome!!
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