Problem
Solution
Part A
For this case we can do this:
[tex]-9=x^2+2x-8[/tex]
And solving for x we got:
[tex]-1=x^2+2x=x(x+2)[/tex]
Then the possible solutions for this case is x= -1
Part B
For this case we can do the following:
[tex]0=x^2+2x-8[/tex]
And if we factorize we got:
[tex]0=(x+4)(x-2)[/tex]
And the x intercepts are:
x=-4 and x=2
And the y intercept is just (0,-8)
Part C
For this case we can do the following:
x y
-4 0
-3 -5
-2 -8
-1 -9
0 -8
1 -5
2 0
3 7
4 16
and the graph would be given by:
