4x² + 6xy - y² when x = 4 and y = 6

asked Apr 24, 2023 106k views

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Solution

We want to evaluate 4x² + 6xy - y² when x = 4 and y = 6

$\begin{gathered} =4(4)^2+6(4)(6)-(6^2) \\ =4(16)+144-36 \\ =64+144-36 \\ =172 \end{gathered}$

The answer is 172

Vasyl Zhuryk answered Apr 28, 2023

7.3k points

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