X^2 -3x-10=0

It is a quadratic equation in x so, it has two values of x.

X2 - 3x - 10 =0

x2 - 5x + 2x - 10 =0

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

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

x + 2= 0; x-5 =0

x=-2, 5

So, the required roots of the equations are -2 and 5.

It is a quadratic equation in x so, it has two values of x.

X2 - 3x - 10 =0

x2 - 5x + 2x - 10 =0

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

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

x + 2= 0; x-5 =0

x=-2, 5

So, the required roots of the equations are -2 and 5.