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OpenStudy (anonymous):
What is the correct simplification of (5x + 7y)(4x − 6y) ? 20x^2 + 2xy + 42y^2 20x^2 + 2xy − 42y^2 20x^2 − 2xy − 42y^2 20x^2 − 2xy + 42y^2
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OpenStudy (anonymous):
\[20x ^{2}-2xy - 42y ^{2}\]
OpenStudy (anonymous):
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