Divide 21x^3 - 47x^2y + 44y^2 - 40y^2 by 3x - 5y
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Answered by
1
Answer:
You (try to) divide your number by successive primes 2,3,5,7,11...
Step-by-step explanation:
Example :
Say you want to factor 756
Even number, divide by 2: 756=2⋅378
Even, divide by 2: 756=2⋅2⋅189
Odd, so try 3: 756=2⋅2⋅3⋅63
And again: 756=2⋅2⋅3⋅3⋅21
And again: 756=2⋅2⋅3⋅3⋅3⋅7
7 is a prime, so you're finished.
You write the result as 756=22⋅33⋅7
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Step-by-step explanation:
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