Pascha is factoring the polynomial, which has four items. 3x^3-15x^2+8x-40
3x^2(x-5)+8(x-5)
Which is the completely factored form of her polynomial
(3x^2-5)(x+8)
(3x^2-8)(x+5)
(3x^2+8)(x-5)
(3x^2+5)(x-8)

If the angle bisectors of a pair of opposite angles of a quadrilateral are the opposite sides of a parallelogram formed by the two angle bisectors and two sides of the quadrilateral, is the quadrilateral always a parallelogram? explain your answer.

Last month, leonhard euler's watch kiosk at the mall had total sales of $9,489. merchandise totaling $225 was returned. the goods that were sold cost leonhard euler's $5,481. operating expenses for the moth were $992. what was the gross profit on sales?

What is the definition of a surd. give an example.