Combine and simplify the x^2 terms the expression
9x^2 - 14x + 20x^2

Solve the x in the equation x^2+14x+17=-96

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.

Find the value of x for which the lines are parallel.