# 10th grade math

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How do I factor 4x^2-12x+8?
so far I took out the Greatest Common Factor.
4(x^2-3x+2)
What next?

• 10th grade math -

do you know how to use the diamond? or were you taught with the FOIL square?

• 10th grade math -

Never heard of diamond. I've heard of FOIL.

• 10th grade math -

Then you would use FOIL, and find which two numbers multiply to get 2, and add to get -3

• 10th grade math -

Ok that's what I thought. I tried to do that.
-2 x 1=-2
-2 + 1=-1

2 x 1=3
2+1=3

-1 x 2=-2
-1+2=1

I don't know what other numbers multiply to 2.

• 10th grade math -

Try making both 2 and 1 negative

• 10th grade math -

oh wow haha.
I see.
thank you!

• 10th grade math -

how do you work the following question out:
if you have a rectangle, whos length is five cm longer than twice it width and has an area of 207com what are the values off the length and width
any help of any kind would be welcome.
thanks.

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