Question

SIMPLIFY :- 9√5 - 4√5 + √125​

Answer 1

Step-by-step explanation:

9√5 - 4√5 + √125 let √5 be x

then 9x-4x=5x

then 9√5 - 4√5 =5√5

5√5=√(5×5×5)

as square root of 5 square is 5

9√5 - 4√5 + √125 =√125+√125=2×√125