To complete the square for the quadratic equation x2-11x+28=0 follow these steps:
1. Move the constant term to the other side of the equation:
2. Take half of the coefficient of x, square it, and add it to both sides:
3. Combine the constants on the right side:
4. Write the left side as a perfect square:
Now you have expressed the quadratic equation in completed square form. If you want to find the solutions for x, you can take the square root of both sides and solve for x:
Keep in mind that the expression inside the square root is negative, which means the solutions will involve complex numbers.
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