SOLUTION: what is the simplified form of (2b-3c)^3? and is (X^2)-7x+5 consider prime ,becuse it can't be factored. Just checking my anwers.

Question 233108: what is the simplified form of (2b-3c)^3? and is (X^2)-7x+5 consider prime ,becuse it can't be factored. Just checking my anwers.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
what is the simplified form of (2b-3c)^3?
Hardly simplified, but here is the expanded form.
(2b)^3 -3(2b)^2(3c)+3(2b)(3c)^2-(3c)^3
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8c^3 - 36b^2c + 54bc^2 - 37c^3
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Is (X^2)-7x+5 consider prime ,because it can't be factored. Just checking my anwers.
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It is considered to be prime in the Real Number system.
It is not prime in the Complex Number systerm.
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Cheers,
Stan H.

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