I really need some help factoring some equations please. These don't neccessarily have to be in the real numbers either so :eek:

1.) 4x^4 + 3x^2 - 1

2.) 9c^4 + 5c^2 + 1

3.) x^3 + x^2 + 4

4.) (a+b)^2 + 7(a+b) + 12

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- Feb 12th 2006, 05:17 PMsoca615Help Me Factor PleaseI really need some help factoring some equations please. These don't neccessarily have to be in the real numbers either so :eek:

1.) 4x^4 + 3x^2 - 1

2.) 9c^4 + 5c^2 + 1

3.) x^3 + x^2 + 4

4.) (a+b)^2 + 7(a+b) + 12 - Feb 12th 2006, 08:39 PMearbothQuote:

Originally Posted by**soca615**

to factorize those expressions use the the rule of Vieta:

to 1)

to 2)

to 3)

to 4)

Bye - Feb 12th 2006, 09:15 PMtopsquarkQuote:

Originally Posted by**earboth**

doesn't factor over the reals. The way I would approach this, then would be to set . The solution is , so

, or you can take the square root of (i.e. solve for c, not ) and string the four factors together. Don't forget the extra 9!

-Dan