The x-intercepts of can be found via the formula
In your case and
Have a go!
Hi all! I found myself needing some desperate help on a homework problem of mine, so I found this site on google, I can already say i can see myself on here frequently lol.
I have homework that wants me to find the vertex, and x and y intercepts' of a parabola. I can very easily find the vertex and the y intercepts with no problem, but the X intercept is giving me some trouble.
The problem is f(x)=-3X^2-4X+5
My professor has tought me to factor the problem and it has worked on a previous problem, but it doesn't work on this one. The back of the book says the X intercepts are -2.12 and .79 but no clue how to get that. Hope you guys can help
Edit: sorry, I just realized I was probably supposed to post this in the Math Challenging Problems forum, my apologies