Asked by Peter

In how many places does
y=4x^2-2x-5 cross the x axis?
Answered by PsyDAG
4x^2 - 2x - 5 = 0

Factor that equation to answer your question. I cannot find factors. Do you have a typo?

3x^2 - 2x - 5 = (3x-5)(x+1) = 0