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We can multiply the polynomials $\left(3x-4y-5z\right)\left(3x-4y+5z\right)$ by using the FOIL method. The acronym F O I L stands for multiplying the terms in each bracket in the following order: First by First ($F\times F$), Outer by Outer ($O\times O$), Inner by Inner ($I\times I$), Last by Last ($L\times L$)
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$\begin{matrix}(F\times F)\:=\:(3x)(3x)\\(O\times O)\:=\:(3x)(-4y+5z)\\(I\times I)\:=\:(-4y-5z)(3x)\\(L\times L)\:=\:(-4y-5z)(-4y+5z)\end{matrix}$
Learn how to solve special products problems step by step online. Solve the product (3x-4y-5z)(3x-4y5z). We can multiply the polynomials \left(3x-4y-5z\right)\left(3x-4y+5z\right) by using the FOIL method. The acronym F O I L stands for multiplying the terms in each bracket in the following order: First by First (F\times F), Outer by Outer (O\times O), Inner by Inner (I\times I), Last by Last (L\times L). Then, combine the four terms in a sum. Substitute the values of the products. We can multiply the polynomials 3x\cdot 3x+3x\left(-4y+5z\right)+\left(-4y-5z\right)3x+\left(-4y-5z\right)\left(-4y+5z\right) by using the FOIL method. The acronym F O I L stands for multiplying the terms in each bracket in the following order: First by First (F\times F), Outer by Outer (O\times O), Inner by Inner (I\times I), Last by Last (L\times L).