Question

Evaluate the exponential expression: (2x)2−3y2=___, if x = 5 and y = 3.

-125
-73
125
73

Answer 1

73

Explanation:

Put the values of the variables where the variables are, then do the arithmetic.

(2·5)^2 -3·3^2 = 10^2 -3·9 = 100 -27 = 73

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