Question

Find the value of 5x³+x²-2x, if X=2
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Answer 1

5(2)^3 + (2)^2 - 2(2)

5(8) + 4 - 4

=40

Explanation:

Since X = 2, you'll put 2 in the place of x, that means anywhere you find an X, you'll replace it with an X.