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If x=4 , Eval...

Question

If $x = 4$ , Evalute
(ii) $x^{2} - 2 x$ .

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Solution

Given: $x^{2} - 2 x$ .

Substituting $x = 4$ in given expression.

$x^{2} - 2 x = 4^{2} - 2 \times 4$

$= 16 - 8 = 8$

Hence, the value of $x^{2} - 2 x$ for $x = 4$ is $8$ .

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