## Which are fully factored - College Algebra

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&gt;&gt; Only three of these are actually fully factored, these three down here. 3x
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plus 2 times 5x minus 3, x plus 1 times x minus 1, and surprisingly perhaps, 3
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times the quantity x squared plus 1. In the first choice, the second factor, 6x
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plus 9, is actually the same as 3 times the quantity 2x plus 3. So since we can
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factor this more, it's not fully factored. Similarly, 10x minus 15 can be
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factored to equal 5 times the quantity 2x minus 3. X squared minus 1, as we
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learned earlier, can be factored as x plus 1 times x minus 1. And the expression
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x squared minus 4x plus 4, which we see multiplied by 5 here, is the same as x
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minus 2 squared.
Title:
Which are fully factored - College Algebra
Video Language:
English
Team:
Udacity
Project:
MA008 - College Algebra
Duration:
0:41
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