Respuesta :

mysticchacha

Answer:

roots:   -2   and 5

Step-by-step explanation:

What are the roots of y = x2 – 3x - 10?

we see...

factor  -10 ....    using the X-method.

-10 =  2 * -5

where  2 + -5 = -3

so

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

roots are  -2 and 5