I can't remember how you find the roots of quadratic equations other than determining the zeroes of the equation and finding the x-intercepts. Can someone please give me a clear answer on this as my dad has been useless on this topic and I need help like ASAP!

You can find the roots of a quadratic equation by determining the zeros of the quadratic function or the ?

You can find the roots of a quadratic equation by determining the x-intercepts of the graph or the ?

1 answer

there is no other way. The roots are the zeroes are the x-intercepts.

The quadratic formula always works. Use it when in trouble.

Or, try and factor the polynomial
x^2+8x+15 = 0
(x+3)(x+5) = 0
the roots are -3 and -5

Surely your algebra book covers the topic in several places.