SOLUTION: Hi, I'm learning about factoring out the greatest common factor and I am stuck. Could you please start this video at 6:05 minutes (https://www.youtube.com/watch?time_continue=360&v
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Question 1141802: Hi, I'm learning about factoring out the greatest common factor and I am stuck. Could you please start this video at 6:05 minutes (https://www.youtube.com/watch?time_continue=360&v=EDebmfT5Nsk) and help me with the problem #4?
He says that there are no common terms, and to use -1. My question is, why isn't Y considered a common term for this equation? Thanks in advance!!
Answer by josgarithmetic(39627) (Show Source): You can put this solution on YOUR website!
The expression for #4 is , and you want to factorize using greatest common factor.
Notice very obviously, does NOT have a factor of y.
Here are the complete factorizations of the terms in the expression:
-1*y*y*y
-2*y*y
y
-1*7
There seems to be no common factor among those terms, but you can view , if you want, as , just so you may have multiplied by an otherwise expression with a positive leading term of degree three. If you do this then you can give .
If you wanted to factorize with y, then you no longer have just a polynomial. You might have but this is not so convenient a factorization because one of these factors is not polynomial.
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