Question

Simplify

a) √28 + √63 + √175

b) ∜16 – 6 ∛343 +18 $\sqrt[5]{243}$ – √196

c) 12 √18 - 6 √128 - 3 √80 + 8 √45

please explain each one stop by step

Answer 1

Answer:

a) √28=2√7

√63=3√7

√175=5√7

therefore,

√28+√63+√175=2√7+3√7+5√7= 10√7