What is the difference in the formula for volume of a cube versus volume of a rectangle?

This is so harddd! solve. 1 + 1 = solve 4 + 4 = solve 3 x 3

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.