WAEC - Mathematics (2020 - No. 8)
If x = 3 and y = -1, evaluate 2(x\(^2\) - y\(^3\))
24
22
20
16
Explanation
2(\(x^2 - y^3\))
= 2(\(3^2 - (-1)^3\))
= 2(9 - (-1))
= 2 x 10 = 20
Comments (0)
2(\(x^2 - y^3\))
= 2(\(3^2 - (-1)^3\))
= 2(9 - (-1))
= 2 x 10 = 20
