Question

Which value or values of x solve the system of equations below?

y=x^2-x-6
y=x^2+6x+8

A. -2
B. -2 AND 3
C. -4 AND -2
D. -4, -2, AND 3

Answer 1

equate them to each other'

Answer 2

x^2 -x -6 = x^2 +6x +8

7x = -14

x=-2

when x=-2 , y= 4 +2 -6 ( by subing into the first equation )

x=-2 , y=0

Answer 3

so A is the correct one

Answer 4

Ooooh okay! Thank you! You really are a lifesaver.