Question

x^3-4x^2>0 solve algebraically and answer in interval notation

Answer 1

Have you considered factoring?

Answer 2

1. Look at corresponding equation:
x^3 - 4x^2 = 0
Now solve it:
x^2(x - 4) = 0
x = 0 or x = 4

Answer 3

but how owuld you get to x-4in the equation

Answer 4

2. Plot the solutions to the equation on a number line.
There are three intervals: (-inf, 0), (0, 4), (4, inf)
Now test a number in each interval to see if it works. If a nunmber works, all numbers in the interval work.

Answer 5

Test -1, 1, and 5 to find which intervals are part of the solution.

Answer 6

alright i understand but i also i have more ? for you

Answer 7

Start a new post. I'll try to help you.