Question

If using the method of completing the square to solve the quadratic equation x, squared, plus, 7, x, plus, 27, equals, 0x 2 7x 27=0, which number would have to be added to "complete the square"?

Answer 1

To complete the square in this quadratic equation, you need to add 49/4.

Step-by-step explanation:

To complete the square, we need to add a number to the quadratic equation. To do this, we take the coefficient of x, which is 7, divide it by 2, then square that result. In this case, (7/2)^2 = 49/4. So, we need to add 49/4 to 'complete the square'.