Question

Factorise each of the following
a)
$p {}^{2} + 11p + 18$
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Answer 1

${p}^{2} + 11p + 18 = 0 \\ \\ {p}^{2} + 9p + 2p + 18 = 0 \\ \\ p(p + 9) + 2(p + 9) = 0 \\ \\ (p + 9)(p + 2) = 0 \\ \\ \\ p = - 9 \: \: or \: \: - 2$

#lovelove!

Answer 2

Step-by-step explanation:

P^2+11p+18

p^2+9p+2p+18

p(p+9)+2(p+9)

(p+9) (p+2)

value of p is -9 and -2