SOLUTION: Can you factor 7a^3 + 28a?
Algebra.Com
Question 780299: Can you factor 7a^3 + 28a?
Found 2 solutions by solver91311, stanbon:
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
The first term has one factor of 7 and 3 factors of a. The second term has two factors of 2, one factor of 7, and one factor of a. One factor of 7 and one factor of a are common, so:
)
is the complete factorization over the real numbers.
(a\ -\ 2i))
is the complete factorization over the complex numbers.
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Can you factor 7a^3 + 28a?
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Common factor:: 7a
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= 7a(a^2+4)
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If you allowed to factor over the complex numbers you get:
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= 7a(a+2i)(a-2i)
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Cheers,
Stan H.
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