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September 21, 2014

September 21, 2014

Posted by **Nini** on Monday, April 6, 2009 at 4:47pm.

1.) 6x2-21xy+8xz-28yz

just to make it clear,the 2 infront of -21

is actualli an Exponent 2.

2.) x2+5x+7x+35

- Gr. 10 math again! -
**PsyDAG**, Monday, April 6, 2009 at 10:08pmOnline, x^2 = x squared.

6x^2 - 21xy + 8xz - 28xz = 6x^2 - 21xy - 20xz =

x(6x - 21y - 20z)

x^2 + 5x + 7x +35 = x^2 + 12x + 35

What two numbers would give a product of 35 and add to 12? That should help you factor.

I hope this helps. Thanks for asking.

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