Question

simplify: √50 + √18 - √8

• A. 7√2
• B. 6√2
• C. 5√2
• D. 8√2

Answer 1

Answer:

B. 6√2

Simplify each square root:

$\sqrt{50}=\sqrt{25\times2}=5\sqrt2$

$\sqrt{18}=\sqrt{9\times2}=3\sqrt2$

$\sqrt{8}=\sqrt{4\times2}=2\sqrt2$

Now combine like terms:

$5\sqrt2+3\sqrt2-2\sqrt2$
$=(5+3-2)\sqrt2$
$=6\sqrt2$

$Answer: (\boxed{6\sqrt2})$