Question

I need help here. I have asked my friend who excels at math in every aspect and I have tried where I am decent enough at math to be on the teacher’s good side. However this one got me and my friend completely stumped

Answer 1

29. 1 real number solution

30. 3 real number solutions

Explanation:

the solutions of an equation of the form ax2 + bx +c = 0 are its x-intercepts

29.
`x^3-4x^2 = 0` : 1 real number solution

30.
`3x^3 +4x^2 - 5x = 0` : 3 real number solutions

(attached are both equations graphed)