Question

What is the solution to the following system of equations?

y = x2 + 10x + 11
y = x2 + x − 7

(−2, −5)
(2, −5)
(−2, 5)
(2, 5)

Answer 1

`(-2,-5)`

Answer 2

(-2,-5)
because
y= y
x^2+10x+ 11 = x^2+x -7
10x-x = -7-11
9x=-18
x=-2

so y = (-2)^2+(-2)-7 = 4-2-7 =-5