If using the method of completing the square to solve the quadratic equation X2 – 192
3 = 0, which number would have to be added to "complete the
square"?

Help please

The number that would be added to make a complete square is

Step-by-step explanation:

We need to solve the expression using completing the square method.

Completing square method is of form:

We need to find the term, that it a complete square

The middle term is -19x so, it can be made as: -2(x)(19/2) according to the formula a^2-2ab+b^2

We have a=x and b=19/2

So, adding and subtracting (19/2)^2

So, the number that would be added to make a complete square is

step-by-step explanation: