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Need help on algebra 2 homework
Chewy:
Ok now different kinds of problems
Ex.) Solve x^3-27=0
FlyGuy45:
--- Quote from: Chewy on November 16, 2009, 08:44:19 PM ---Ok now different kinds of problems
Ex.) Solve x^3-27=0
--- End quote ---
Difference of 2 cubtes
a=x
b=3
DrMobius:
--- Quote from: FlyGuy45 on November 16, 2009, 08:42:06 PM ---Wrong.
--- End quote ---
Fair enough. Even so, too of its zeros are imaginary. That is what forgeted me up I guess. the zeros to a2 + ab + b2 are both at imaginary numbers.
Chewy:
I understand it all now the answer to x^3-27=0 is x=3, -3+-3i sqrt3/2
or x equals three and negative three plus or minus three i times the square root of three over two
FlyGuy45:
--- Quote from: Chewy on November 16, 2009, 09:02:32 PM ---I understand it all now the answer to x^3-27=0 is x=3, -3+-3i sqrt3/2
or x equals three and negative three plus or minus three i times the square root of three over two
--- End quote ---
(x-3)(X^2+3x+6)