cadenb3222 cadenb3222 27-12-2017 Mathematics contestada 1. Factor the expression 3X^3+4X^2-15X-20 Show your work 2.Solve the equation p^2+4p=1 by completing the square. Show your work 3. Multiply the polynomials (a^2+3a-7) and (2a^2-a+4) Simplify the answer. Show your work.