Saturday

November 29, 2014

November 29, 2014

Posted by **Labz** on Monday, June 4, 2012 at 5:54pm.

- Math -
**Reiny**, Monday, June 4, 2012 at 7:02pmlet f(x) = x^3 - 4x^2 + x + 6

f(1) = 1-4+1+6 ≠0

f(-1) = -1 - 4 -1 + 6 = 0

so (x+1) is a factor

Using synthetic division or long algebraic division

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

= (x+1)(x^2 - 5x + 6)

= (x+1)(x-6)(x+1)

so x = 6 or x = -1 (a double root at x=-1)

- Math -
**Labz**, Monday, June 4, 2012 at 7:07pmthank you!

**Answer this Question**

**Related Questions**

math ergent please - 3. Factor x^4-3x^3-11x^2+3x+10 completely using the factor ...

math - If the sides of a box all double in length, by how much does its volume ...

Math - How do you factor "0 = x^4 - 6x^2 + 5"? Please show all steps. Here's my ...

Math - Can somebody please explain to me how to factor trinomials that contain ...

11th grade - Factor f(x) = x^4 + x^3 – 8x^2 + 6x + 36 completely. Show all steps...

math - factor this polynomial function completely f(x)=12x^4+10x^3-214x^2+198x+...

Pre-Calc - I have one more question I don't understand. It's a multiple choice ...

math help!! - factor: (x^2+5x)^2 - 36 and (a-b)^2 - (c-d)^2 show the steps ...

Math - Factor pls show me steps thank u! (X-1)(x+2)^2-(x-1)^2(x+2)

math - factor: 2x^3 - x^2 - 162x + 81 and could you show steps as well? thanks ...