SOLUTION: Perform the indicated operations: (x to the second power - 11x + 4) - (-2x to the second power + 2x - 6) - (x to the second power + 6x - 5)

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Perform the indicated operations: (x to the second power - 11x + 4) - (-2x to the second power + 2x - 6) - (x to the second power + 6x - 5)      Log On


   

Question 238146: Perform the indicated operations: (x to the second power - 11x + 4) - (-2x to the second power + 2x - 6) - (x to the second power + 6x - 5)
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
(x^2 - 11x + 4) - (-2x^2 + 2x - 6) - (x^2 + 6x - 5)
X^2-11X+4+2X^2-2X+6-X^2-6X+5
2X^2-19X+15
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
X=(19+-SQRT[-19^2-4*2*15])/2*2
X=(19+-SQRT[361-120])/4
X=(19+-SQRT241)/4
X=(19+-15.524)/4
X=(19+15.524)/4
X=34.524/4
X=8.631 ANS.
X=(19-15.524)/4
X=3.476/4
X=.869 ANS.