Can someone explain how to find the x-intercept of x^3+2x^2-2x with detail please, I have the answer, I just don’t know how to get through the steps and why I’m doing said steps.

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

Which inequality has a dashed boundary line when graphed ?

You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?