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Posted by **Betty C** on Tuesday, June 1, 2010 at 9:46pm.

4xX^2-20x-24

4(X^2-5x-60

4(x-6)(x+1)

12x^2-75

3(X^2-25)=3(X-25)(x+3)

Can someone check these problem for me please.

- algebra -
**Jen**, Tuesday, June 1, 2010 at 9:53pmThe first one, second line should read 4(x^2-5x-6). I think that's just a typo. For the 2nd one:

12x^2-75

3(x2-25)

3(x-5)(x+5)

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