Gary W. answered • 02/11/14
Tutor
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Experienced Tutor--Taught K up to College level classes
if you are suppose to factor this then thing about this: d6 is (d2)3.
So you have (d2)3-h3
Which when you plug it into the formula (a3-b3)=(a-b)(a2+ab+b2)
You get (d2-h)((d2)2+d2h+h2)
Or (d2-h)(d4+d2h+h2)
Gary W.
Vivian was trying to simplify it and it is already simplified. I just assumed you needed to factor it. It is always best to include the directions.
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02/12/14
Vivian L.
Thank you Gary. There are so many things you can do with something like this.
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02/12/14
Gary W.
Vivian: Yeah tell me about it. Two of the students I'm tutoring were failing math because the teacher never gave directions. I've taught math for years, so I knew what the students were suppose to do. The parents sent a note to the teacher and the
principal requesting directions now be included with all tests. I mean the poor child had something like 4a2b+7a2b and she was trying to factor and got it wrong the instructor was wanting her to combine like terms.
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02/12/14
Steven A.
02/12/14