Posted by lilian on Tuesday, May 10, 2011 at 10:36pm.
question: factor (using the GCF) 18D^3+45D^6
answer:would it be 9D^2(2+5D^4)?

math10  Reiny, Tuesday, May 10, 2011 at 10:42pm
no, try expanding your answer, you will not get the original.
should be
9D^3(2 + 5D^3)

math10  lilian, Tuesday, May 10, 2011 at 10:48pm
well it says:
A 9D(2D+5D^5)
B 6D^2(3+9D^4)
C 3D^2(6+15D^4)
D 9D^2(2+5D^4)

math10  Reiny, Tuesday, May 10, 2011 at 10:51pm
And none of those answers , when expanded , will give you the original question the way you typed it.
So what do you think????

math10  lilian, Tuesday, May 10, 2011 at 10:54pm
i thought the answer was D

math10  Reiny, Tuesday, May 10, 2011 at 11:01pm
1. Did you expand D ?
2. Did you check the typing of your original question?

math10  lilian, Tuesday, May 10, 2011 at 11:05pm
oh sorry it is 18D^2+45D^6 not 18D^3
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