Question

maths sum the answer is correct you know​

Answer 1

do some modifications like this

x^2-5x+2x-10=0

x(x-5) +2(x-5) =0

(x-5) (x+2) =0

x-5 = 0 | x+2=0

x = 5 | X = -2

so, -2, 5 are the roots of given equation