Simplify the radical. Assume that all variables represent positive numbers.
-$\sqrt { 147 x ^ { 2 } }$
A) $3 x ^ { 2 } \sqrt { 7 }$
B)147x
C) $7 \sqrt { 3 x }$
D) $7 x \sqrt { 3 }$

Question

Quizplus · Accepted Answer

The expression $\sqrt { 147 x ^ { 2 } }$ simplifies to $7 x \sqrt { 3 }$ because $147 = 49 \times 3$ and $49$ is a perfect square, which is $7^2$, and $x^2$ under the square root simplifies to $x$.

Simplify the Radical 147x2\sqrt { 147 x ^ { 2 } }147x2​

Simplify the Radical $\sqrt { 147 x ^ { 2 } }$