1. 5x(x^3-4x+6) 2. (x-2)(2x+3) 3. (y+2)(y^2+y-4)

Question

1. 5x(x^3-4x+6)
2. (x-2)(2x+3)
3. (y+2)(y^2+y-4)

Answer 1

1) 5x^4-20x^2+30x
2) 2x^2+3x-4x-6
3) y^3+y^2-4y+2y^2+2y-8