Question

Factorise the following
${\pi }^{2} - 11\pi - 102$
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Answer 1

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GIVEN:

$\pi² - 11\pi- 102$

FACTORISATION:

$\pi² - 11\pi- 102$

$= \pi²- (17-6)\pi-102$

$=\pi²-17\pi +6\pi - 102$

$=\pi(\pi-17) + 6(\pi - 17)$

$= (\pi-17) (\pi+6)$