Question

9√2-3√7+√8-√28 Simplify

Answer 1

Explanation:

first factorize the numbers

8=2^3

28= 2×2×7

now

9√2 - 3√7 + √2×2×2 -√2×2×7

as the square root is given you can take the squares out of the root

9√2 - 3√7 + 2√2 - 2√7

(9 +2 )√2 - (3+2)√7

11√2- 5√7

here's the answer