College Algebra
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9 Terms
1
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When do we set the numerator equal to 0?
to find solutions
2
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difference of cubes (a³-b³)
(a-b)(a²+ab+b²)
3
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when do we set the denominator equal to 0?
to find restrictions (makes the equation undefined)
4
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difference of squares (a²-b²)
(a-b)(a+b)
5
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(mnemonic device) “the difference of squares factors to…”
“conjugate pairs!”
6
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sum of cubes (a³+b³)
(a+b)(a²-ab+b²)
7
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perfect square trinomial/square of a binomial (a+b)² or (a-b)²
a²±2ab+b² (first sign always stays the same)
8
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soap
sum/difference of cubes: same, opposite, always positive
9
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when do you split the middle term vs go ahead and factor them out?
when a≠1, split the middle term.
Note 
Flashcards (26)