Factor the following polynomial completely: 5x^4+20x^3-105x^2
a.) 5x^3(x+3)(x-7)
b.) 5x^2(x-3)(x+7)
c.) 5x^2(x+3)(x-7)
d.) 5x^3(x-3)(x+7)

Select a graph that have an equation with a < 0

Find the volume of the described solid. the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x. a) 441b) 147c) 864d) 882

If a is a nonzero real number then the reciprocal of a is