Question

Factotorise .k2 _ 2k _ 120.

Answer 1

${k}^{2} - 2k - 120 \\ {k }^{2} - 12k + 10k - 120 \\ k(k - 12) + 10(k - 12) \\ (k - 12)(k + 10)$

This is your answer....

Hope it helps!

Answer 2

Answer:

k^2-2k-120

=k^2-12k+10k-120

=k(k-12)+10(k-12)

=(k-12)(k+10)