If the function f(x)=y^3-2x2-15x was graphed on a coordinate plane, which of these represents all the zeros of the function?

Find the quotient. 50a2 – 98b2 -5a +7b

If you answer 2+2 you will get over 80 points

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)