Choose the one alternative that best completes the statement or answers the question.
Simplify. Assume that all variables represent positive real numbers.
-$5 \sqrt{11}+8 \sqrt{11}$
A) $13 \sqrt{22}$
B) 143
C) $13 \sqrt{11}$
D) $40 \sqrt{11}$

Question

Quizplus · Accepted Answer

Since both terms have the same radical part $\sqrt{11}$, you can add their coefficients (5 and 8) to get $13\sqrt{11}$.

Choose the One Alternative That Best Completes the Statement or Answers