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OpenStudy (anonymous):
Choose the correct simplification of the expression (−2x + 6y)(4x − 6y). 8x^2 + 36xy − 36y^2 −8x^2 − 36xy + 36y^2 −8x^2 + 36xy − 36y^2 −8x^2 + 12xy − 36y^2
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OpenStudy (anonymous):
(a+b)(c+d)=ad+ac+bc+bd
OpenStudy (anonymous):
can you help me please
OpenStudy (anonymous):
ok a=-2x b=6y c=4x d=-6y use the above formula
OpenStudy (anonymous):
is it the first one
OpenStudy (anonymous):
yes
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OpenStudy (anonymous):
thought so thanks!
OpenStudy (anonymous):
never mention
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