Please help, I am not allowed to use the FOIL method for this problem.

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Zachary Orr asked Apr 28, 2023

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28 votes

Please help, I am not allowed to use the FOIL method for this problem.

Mathematics
college

Zachary Orr asked Apr 28, 2023

by Zachary Orr

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1 Answer

20 votes

$(4p+11)(5p-4)\hspace{5em} \begin{array}{llll} 4p+11\\ * ~~ 5p\\\cline{1-1} 20p^2+55p \end{array}~~ + ~~ \begin{array}{llll} 4p+11\\ * ~~ -4\\\cline{1-1} -16p-44 \end{array} \\\\\\ (20p^2+55p)~~ + ~~(-16p-44)\implies 20p^2+55p-16p-44 \\\\[-0.35em] ~\dotfill\\\\ ~\hfill 20p^2+39p-44~\hfill$