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the volume of a rectangular solid is given by expressions given below.in each case find the dimentions of the solid.

a)6x^3+5x^2-6x.

b)15x^2-51x+18.

c)x^3+13x^2+32x+20.

d)x^2-5x/2-3/2.

e)x^3-9x.

f)x^4+x^3-x-1
plz everyon help me

  • math -

    Try:
    6x^3+5x^2-6x.
    =x(6x^2+5x-6)
    =x(6x^2-4x + 9x-6)
    =x[2x(3x-2) + 3(3x-2)]
    =x(3x-2)(2x+3)

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