Question

If x=3, find the value of x square -2x-3

Answer 1

Step-by-step explanation:

$x = 3 \\ \\ {x}^{2} - 2x - 3 \\ = {3}^{2} - 2 \times 3 - 3 \\ = 9 - 6 - 3 \\ = 9 - 9 \\ = 0$

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