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The quadratic function you have is x^2+4x-21
The graph will be a parabola

To find the x-intercepts, set your quadratic expression(function) equal to 0.
Then solve for x.

What is -2 suppose to be ?
Your x-intercepts are correct for this quadratic function.

Oh im just saying he took off 2 points and wrote use quadratic function.

Does he mean formula?

The quadratic formula is
\[x=\frac{-b \pm \sqrt{b^2-4ac}}{2a} \]

hmm ill try it.

Thanks for your help

Np. Good luck.

tnx

oh if you do the quadratic function you get 3 and -7. Can you check that for me? @myininaya

do you write it as (3,0) and (-7,0) though?

Yep
You could have factored or used the quadratic formula.

Yea, i understand.

Coolness.