Posted by yengiang on Saturday, November 10, 2012 at 12:59pm.
Simplify
7x^2+45x+18/(x^3+12x^2+36x)
Please help.
Thank you.

math10th  Steve, Saturday, November 10, 2012 at 1:49pm
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))

math10th  Eric, Sunday, November 11, 2012 at 2:04pm
(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  Audree, Sunday, November 11, 2012 at 8:06pm
what is the area of 32cm
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