Question

Answer 1

`b)(x^2-2x+3)(1/2x-5)`

`=1/2x^3-5x^2-x^2+10x+3/2x-15`

`=1/2x^3-6x^2+23/2x-15`

`d)(2x-1)(3x+2)(3-x)`

`=(6x^2+4x-3x-2)(3-x)`

`=(6x^2+x-2)(3-x)`

`=18x^2-6x^3+3x-x^2-6+2x`

`=-6x^3+17x^2+5x-6`

`f)(2x^3-3x-1)(5x+2)`

`=10x^4+4x^3-15x^2-6x-5x-2`

`=10x^4+4x^3-15x^2-11x-2`