Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

Rewrite the function by completing the square.

{:[g(x)=x^(2)-x-6],[g(x)=◻(x+◻)^(2)+◻]:}

Rewrite the function by completing the square.\newlineg(x)=x2x6g(x)=(x+)2+ \begin{array}{l} g(x)=x^{2}-x-6 \\ g(x)=\square(x+\square)^{2}+\square \end{array}

Full solution

Q. Rewrite the function by completing the square.\newlineg(x)=x2x6g(x)=(x+)2+ \begin{array}{l} g(x)=x^{2}-x-6 \\ g(x)=\square(x+\square)^{2}+\square \end{array}
  1. Identify Coefficients: Identify the coefficients of the x2x^2 and xx terms in the quadratic function.\newlineThe coefficient of x2x^2 is 11, and the coefficient of xx is 1-1. We will use these to complete the square.
  2. Divide and Square: Divide the coefficient of the xx term by 22 and square the result to find the number to complete the square.\newlineThe coefficient of xx is 1-1, so we divide it by 22 to get 12-\frac{1}{2}, and then square (12)(-\frac{1}{2}) to get 14\frac{1}{4}.
  3. Add and Subtract: Add and subtract the squared number inside the function to complete the square.\newlineWe add and subtract (1/4)(1/4) inside the function to maintain the equality.\newlineg(x)=x2x+(1/4)(1/4)6g(x) = x^2 - x + (1/4) - (1/4) - 6
  4. Rewrite as Perfect Square: Rewrite the quadratic part of the function as a perfect square.\newlineThe quadratic part of the function is now x2x+14x^2 - x + \frac{1}{4}, which can be written as (x12)2(x - \frac{1}{2})^2 because (x12)(x12)=x2x+14(x - \frac{1}{2})(x - \frac{1}{2}) = x^2 - x + \frac{1}{4}.\newlineg(x)=(x12)2146g(x) = (x - \frac{1}{2})^2 - \frac{1}{4} - 6
  5. Combine Constants: Combine the constants outside the perfect square.\newlineCombine 14-\frac{1}{4} and 6-6 to get 614=24414=254-6 - \frac{1}{4} = -\frac{24}{4} - \frac{1}{4} = -\frac{25}{4}.\newlineg(x)=(x12)2254g(x) = (x - \frac{1}{2})^2 - \frac{25}{4}
  6. Final Form: Write the final form of the function by completing the square.\newlineThe completed square form of the function is g(x)=(x12)2254g(x) = (x - \frac{1}{2})^2 - \frac{25}{4}.