Question

(x)2+5√5x+30. class 9

Answer 1

= x ^ 2 + 5√5 x + 30

= x ^ 2 + 3√5 x + 2√5 x + 30

= x ( x + 3√5 ) + 2√5 ( x + 3√5 ) 

= ( x + 3√5 ) ( x + 2√5 )

Answer 2

Hey

Here is your answer,

x^2 + 5√5 x + 30=0
x^2 -2√5x -3√5x +30 = 0
x(x-2√5) -3√5(x-2√5)=0
(x-2√5)(x-3√5)=0
x = 2√5, 3√5

Hope it helps you!