Second problem - Riley was given the step justification, but was expected to fill out the green boxes to prove that
mn? = (m-n)(mºumn+n?) is an identity.
Please fill out the green boxes in the chart below using the justification on
the right. Show the work Riley would have needed in the box to make this
true proof.
Hint - To make an exponent, highlight the number, the hold control and t
period button (Ctr +.)
(m-n)(mº+mn+n?)
Right side of the equat
Step 1:
Multiplication (distribut
Step 2:
Combine Like Terms
m-n" = (m-n)(m’+mn+n?) is an identity.