x3(exponent)-x(exponent)-3x+3
skeeter Elite Member Joined Dec 15, 2005 Messages 3,218 Apr 2, 2006 #2 I'm assuming you are looking for the values of x where x<sup>3</sup> - x<sup>2</sup> - 3x + 3 = 0 factor by grouping ... x<sup>2</sup>(x - 1) - 3(x - 1) = 0 (x - 1)(x<sup>2</sup> - 3) = 0 can you take it from here?
I'm assuming you are looking for the values of x where x<sup>3</sup> - x<sup>2</sup> - 3x + 3 = 0 factor by grouping ... x<sup>2</sup>(x - 1) - 3(x - 1) = 0 (x - 1)(x<sup>2</sup> - 3) = 0 can you take it from here?
S sagar1127 New member Joined Mar 27, 2006 Messages 20 Apr 2, 2006 #3 im trying to find the rational zero
stapel Super Moderator Staff member Joined Feb 4, 2004 Messages 16,582 Apr 2, 2006 #4 sagar1127 said: im trying to find the rational zero Click to expand... The tutor gave you the factored form. Solve the factors to find the rational zero. Where are you stuck? Eliz.
sagar1127 said: im trying to find the rational zero Click to expand... The tutor gave you the factored form. Solve the factors to find the rational zero. Where are you stuck? Eliz.
pka Elite Member Joined Jan 29, 2005 Messages 11,995 Apr 2, 2006 #5 The zeros are 1&±3\displaystyle 1\quad \& \quad \pm \sqrt 31&±3. Do you know which of those is/are rational?
The zeros are 1&±3\displaystyle 1\quad \& \quad \pm \sqrt 31&±3. Do you know which of those is/are rational?
