If x= 2 and y = -4, evaluate xy + 2x - 2y

Drikus Roor asked Oct 13, 2023

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Drikus Roor asked Oct 13, 2023

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27 votes

To evaluate xy + 2x - 2y, we need to replace x by 2 and y by -4 as:

$\begin{gathered} xy+2x-2y \\ 2(-4)+2(2)-2(-4) \end{gathered}$

So, solving the multiplication and then adding the numbers, we get:

$\begin{gathered} 2(-4)+2(2)-2(-4) \\ -8+4+8 \\ 4 \end{gathered}$

Answer: 4

SteveP answered Oct 19, 2023

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