Question

Factorize 7(h+k)^2 - 21(h+k)
Can someone pls help me?

Answer 1

Answer:

7(h+k)^2-21(h+k)

=7(h+k)(h+k-3)

Answer 2

$\sf factorise \: \: \: : \: \green{7 {(h + k)}^{2} - 21(h + k)}$

$\blue{ \sf final \: \: answer} \: \longmapsto \: \: \boxed{ \orange{\sf7(h + k)(h + k - 3)}}$