math-10th

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Simplify
7x^2+45x+18/(x^3+12x^2+36x)


Please help.


Thank you.

  • math-10th -

    7x^2+45x+18 = (7x+3)(x+6)
    x^3+12x^2+36x = x(x+6)^2

    so, dividing, you are left with

    (7x+3)/(x(x+6))

  • math-10th -

    (7x+3)/x(x+6)^2 can be simplified to

    (7x+3)/(x^2+6x)^2 which can be simplified to...

    (7x+3)/(x^4)+(6x^2)

  • Cass -10th Geometry -

    what is the area of 32cm

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