How do you evaluate 7√2 + √50 - 2/18?

1 Answer
Mar 21, 2018

7sqrt2+sqrt50-2/18=color(blue)(12sqrt2-1/972+50218=12219

Explanation:

Simplify:

7sqrt2+sqrt50-2/1872+50218

Simplify 2/18218 to 1/919.

7sqrt2 + sqrt50-1/972+5019

Prime factorize sqrt5050.

7sqrt2+sqrt(2xx5^5)-1/972+2×5519

Apply rule: sqrt(a^2)=aa2=a

7sqrt2+5sqrt2-1/972+5219

Simplify.

12sqrt2-1/912219