Homework Help: 9th grade algebra

Posted by Dippy on Thursday, April 9, 2009 at 12:20am.

This is for my daughter.

find the product of

x^2 -4/5 X x + 2/x - 2

could you please show us the work so we can try to understand how it works?

9th grade algebra - Damon, Thursday, April 9, 2009 at 4:12am
[(x^2-4)/5] * (x+2)/(x-2) ??? maybe???

(x+2)(x-2)/5 * (x+2)/(x-2)

(x+2)^2 /5
or
(x^2 + 4 x + 4)/5
9th grade algebra - Riley, Thursday, April 9, 2009 at 3:33pm
Use parentheses to make things easier.

[(x^2)-(4x/5)]*[(2/x)-2]

[(x^2)*5/5-(4x/5)]*[(2/x)-2*x/x)

(5x^2-4x) * (2-2x)
--------- ----
5 * x

Multiply through to get:

10x^3+18x^2-8x
--------------
5x
9th grade algebra - danny, Wednesday, May 13, 2009 at 4:30pm
4(4x-1)(x-2)=0
9th grade algebra - tiaya, Wednesday, July 22, 2009 at 8:46am
(7f6)(-3tc-3)
9th grade algebra - stormy, Wednesday, March 13, 2013 at 9:19am
what is 27-5x<3(4x+5)

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