Question

K = n(n + 1)2.L = m2If n = 9 and m = = 7,find L - K.

Answer 1

L-K

1) Gathering data from the question.

K=n(n+1)

L=m²

2) Let's plug the values in

K=9(9+1)

K=9(10)

K=90

L=(7)²

L=49

3) To find L-K is to subtract those:

L-k

49-90

-41