Simplify the expression $\sqrt { 64 x } + \sqrt { 9 x }$ .
A) $\sqrt { x }$
B) 67 $\sqrt { x }$
C) 11x
D) 11 $\sqrt { x }$
E) $\sqrt { 11 }$ x

Question

Quizplus · Accepted Answer

We can simplify each square root: 
$$\sqrt { 64 x } = 8 \sqrt x$$ 
$$\sqrt { 9 x } = 3 \sqrt x$$
Now we can combine the terms: 
$$\sqrt { 64 x } + \sqrt { 9 x } = 8 \sqrt x + 3 \sqrt x = 11 \sqrt x$$ 
So the answer is D, 11$\sqrt{x}$.

Simplify the Expression 64x+9x\sqrt { 64 x } + \sqrt { 9 x }64x​+9x​

Simplify the Expression $\sqrt { 64 x } + \sqrt { 9 x }$