Question
Factorise:
$p^2-6 p-16$
$p^2-6 p-16$
✓
Answer
$p^2-6 p-16$
$=p^2+8 p-2 p-16$
$\{-16=8 \times(-2), 6=8-2\}$
$= p(p + 8) - 2(p + 8)$
$ = (p + 8)(p - 2)$
$=p^2+8 p-2 p-16$
$\{-16=8 \times(-2), 6=8-2\}$
$= p(p + 8) - 2(p + 8)$
$ = (p + 8)(p - 2)$
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