Simplify the radical

Question

Simply the radical.

Answer 1

Answer:

Separate the large numbers inside the radicals.

√(5 )+ √(9*5) - 5√(25*5)

Bring out squared numbers from the radical.

√(5 )+ 3√5 - (5*5)√5

Add or subtract the terms that are multiplied by the √5.

√(5 )+ 3√5 - (25)√5

-21√5 - Problem Solved

Answer 2

square root of 45 is 3sqr5

45=9x5

square root of 125 is 5sqr5

125 = 5x25

so the three terms can factor out sqr 5 leaving

(1+3-25)=-21

-21sqr5 is the sum in simplest form

The problem though asks for simplifying an equation. There is no equation, just the sum of 3 terms.