The simplified expression by rationalizing the denominator is (C)
.First we must simplify the expression:

Then we factor the rational parts and cancel it out:

Then we rationalize the expression:

<span>Finally, the simplified expression by rationalizing the denominator is (C)

.</span>
11x + 2 is combining like terms
Is it a yardstick? It has 2 ft of the edges and one ft in the middle.