Question

Find the value of under root 45 multiply under root 20

Answer 1

√45 = √9*3 =3√5
√20= √4*5 =2√5

3√5*2√5=6*5=30

Answer 2

Hey mate here is your answer

√45x√20

√ 9 x√5 x √4 x √5

3x√5 x 2 x √5

3x2x5

30

Hope it helped you :)