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Mathematics 9 Online
OpenStudy (anonymous):

find the missing coefficient (2d-5)(2d-4)=4d^2+[ ]+20

OpenStudy (anonymous):

someone please HELP

OpenStudy (whpalmer4):

\[2d-5)(2d-4)=2d(2d-4)-5(2d-4) =\] apply the distributive property again, the collect like terms. Compare with the equation with the missing part to get your answer.

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