Question

X square -2root 5x +5 . Factorize it

Answer 1

x^2-2root5x+5

(can be factorized by the identity (a-b)^2=a^2-2ab+b^2)

ie,

x^2-2root5x+5=(x-root5)^2

=(x-root5)(x-root5)

Hope it helps...........