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OpenStudy (anonymous):
can you factor: 49x^2-42xy+9y^2?
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OpenStudy (anonymous):
its a perfect square; just do (7x)^2-2*7x*34+(3y)^2; use the formula of (a-b)^2=a^2-2ab+b^2; so the answer is (7x-3y)^2
OpenStudy (anonymous):
ok ty:)
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