If x = 3 and y = -1, evaluate 2(x\(^2\) – y\(^3\))

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Mathematics WAEC 2020

If x = 3 and y = -1, evaluate 2(x\(^2\) – y\(^3\))

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  • 20 checkmark
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The correct answer is: C

Explanation

2(\(x^2 - y^3\))

= 2(\(3^2 - (-1)^3\))

= 2(9 - (-1))

= 2 x 10 = 20

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