CPM Homework Help : A2C Problem 12-66

Use algebra to demonstrate that each pair of expressions in parts (a) and (b) below are equivalent. Homework Help ✎
1. and
2. and

Hint (a):

Simplify and find a common denominator in the first expression:

$\frac{k^2+k+2k+2}{2}$

Now combine like terms and factor.

Hint (b):

Use the same method as in part (a).