Simplify the radical. Assume that all variables represent positive numbers.
-$\sqrt { 343 y ^ { 2 } }$
A) $7 y ^ { 2 } \sqrt { 7 }$
B) $7 \sqrt { 7 }$
C) $7 y \sqrt { 7 }$
D) $7 \sqrt { 7 y ^ { 2 } }$

Question

Quizplus · Accepted Answer

The expression $\sqrt { 343 y ^ { 2 } }$ simplifies to $7 y \sqrt { 7 }$ because 343 is a perfect square (49*7) and $y^2$ under a square root simplifies to $y$, making the correct answer $7 y \sqrt { 7 }$.

Simplify the Radical 343y2\sqrt { 343 y ^ { 2 } }343y2​

Simplify the Radical $\sqrt { 343 y ^ { 2 } }$