Factorise the following expression: p2+6p-16
Factorise the given expression:
The given expression is,
p2+6p-16=p2-2p+8p-16
=p(p-2)+8(p-2)
=(p-2)(p+18)
Hence, the factors are (p-2) and (p+18).
Factorise the following expressions
(i) p2 + 6p + 8
(ii) q2 − 10q + 21
(iii) p2 + 6p − 16