Question

(e) f2 + 6f – 16 Factorise​

Answer 1

$\huge\bold\red{ solution }$

$f ^{2} + 6f - 16 \\ \\ f ^{2} + 8f - 2f - 16 \\ \\ f(f + 8) - 2(f + 8) \\ \\ (f + 8)(f - 2) \\ \\ f = - 8 \: and \: f = 2$

Answer 2

Step-by-step explanation:

$f {}^{2} + 6f - 16$

$= f {}^{2} + 8f - 2f \: -1 6$

$= f(f + 8) - 2(f + 8)$

$= (f + 8)(f - 2)$

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