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
all work is shown/pictured
12) 26x^2+22x+25
13) -15x^2-21x-11
14) x^2+32x+18
15) 9x^6+10x^5-15x^4+14
