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Solve for x.
x^(2)-x=1

Solve for xx.\newlinex2x=1 x^{2}-x=1

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Q. Solve for xx.\newlinex2x=1 x^{2}-x=1
  1. Rewrite Equation: Rewrite the given equation in the standard form for a quadratic equation.\newlineThe given equation is x2x=1x^2 - x = 1. To solve for xx, we need to rewrite the equation in the standard form of a quadratic equation, which is ax2+bx+c=0ax^2 + bx + c = 0. We can do this by subtracting 11 from both sides of the equation.\newlinex2x1=0x^2 - x - 1 = 0
  2. Use Quadratic Formula: Use the quadratic formula to find the solutions for xx. The quadratic formula is x=b±b24ac2ax = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}, where aa, bb, and cc are the coefficients from the standard form of the quadratic equation ax2+bx+c=0ax^2 + bx + c = 0. In our case, a=1a = 1, b=1b = -1, and c=1c = -1.
  3. Calculate Discriminant: Calculate the discriminant b24acb^2 - 4ac. The discriminant is the part of the quadratic formula under the square root, which determines the nature of the roots. For our equation, the discriminant is: (1)24(1)(1)=1+4=5 (-1)^2 - 4(1)(-1) = 1 + 4 = 5
  4. Apply Discriminant: Apply the discriminant to the quadratic formula.\newlineNow that we have the discriminant, we can find the solutions for xx using the quadratic formula:\newlinex=(1)±52×1x = \frac{-(-1) \pm \sqrt{5}}{2 \times 1}\newlinex=1±52x = \frac{1 \pm \sqrt{5}}{2}
  5. Simplify Solutions: Simplify the solutions for xx. We have two solutions based on the ±\pm sign in the quadratic formula: x=1+52x = \frac{1 + \sqrt{5}}{2} and x=152x = \frac{1 - \sqrt{5}}{2} These are the two solutions to the equation x2x=1x^2 - x = 1.

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