Question

What is the solution to the following system of equations? Y equals X squared +10 X +11 and Y equals X squared plus X -7

Answer 1

Explanation:

the system is :

y=x²+10x+11 ...(1)

y=x²+x-7.....(2)

by (1) and (2) : x²+10x+11 = x²+x-7

10x+11 = x - 7

10x - x = -7 -11

9x = -18

x = -18/9 = -2

put this value in (1) or (2) : y=(-2)²+(-2)-7 = 4 -9 = -5

single solution for this system : (-2 ; -5)