Evaluate the expression 7x2y when x 3 and y 4


Asked by maham237 @ in Mathematics viewed by 390 People


The 2 is too the power of whatever x is.

Answered by maham237 @



7x^2y \hbox{ when } x=3 \hbox{ and } y=4 \\ \Downarrow \\ 7 \times 3^2 \times 4=7 \times 9 \times 4=\boxed{252}

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