Resolve into factors :

1) x^2 +2(a^2 + b^2) + 3ax - b(3x + 5a)

2) x^4 + 6x^3 + 4x^2 - 15x + 6

Thanking you

Regards

Sreedhar

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- Dec 7th 2009, 03:00 AMyshridharResolve into factors
Resolve into factors :

1) x^2 +2(a^2 + b^2) + 3ax - b(3x + 5a)

2) x^4 + 6x^3 + 4x^2 - 15x + 6

Thanking you

Regards

Sreedhar - Dec 7th 2009, 06:32 AMI-Think
Rearranging

Now using the quadratic formula

Should be able to solve from there, solve for x and these are your factors

2) x^4 + 6x^3 + 4x^2 - 15x + 6

This equation is in its simplest form.

Any polynomial whose coefficients are integers will, if it has an integer solution, have an integer solution that is a factor of the coefficient of the zeroth order term i.e. the constant. For example look at the general quartic:

a x^4 + b x^3 + c x^2 + d x + e = 0

where the coefficients a through e are integers. Well if there is an integer solution to this then it will be a factor of e.

No factor of 6 makes this equation, hence it's in its simplest form - Dec 8th 2009, 02:15 AMmr fantastic