Question
If $x = 4,$ evaluate:
$x^2 – 2x$
$x^2 – 2x$
✓
Answer
$x^2 – 2x$
$= (4)^2 − 2(4)$
$= (4 \times 4) − (2 \times 4)$
$= 16 − 8$
$= 8$
$= (4)^2 − 2(4)$
$= (4 \times 4) − (2 \times 4)$
$= 16 − 8$
$= 8$
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