Add and Subtract Square Roots
-$6 \sqrt { 3 } + 2 \sqrt { 3 }$
A) $8 \sqrt { 3 }$
B) $12 \sqrt { 6 }$
C) $8 \sqrt { 6 }$
D) $4 \sqrt { 3 }$

Question

Quizplus · Accepted Answer

When adding or subtracting square roots, you can only combine the terms if they have the same radicand (the number under the square root). Here, both terms have $\sqrt{3}$, so you can add their coefficients (6 and 2) to get $8\sqrt{3}$.

Add and Subtract Square Roots - 63+236 \sqrt { 3 } + 2 \sqrt { 3 }63​+23​

Add and Subtract Square Roots
- $6 \sqrt { 3 } + 2 \sqrt { 3 }$