PLZ HELP I will give the brain 100 points!! Which of the following statements is true about completing the square? 1. When completing the square, add the square of half the coefficient of x to only the x^2+bx side of the equation. 2. When completing the square, add the square of half the coefficient of x to both sides of the equation. 3. When completing the square, subtract the square of half the coefficient of x from both sides of the equation. 4. When completing the square, add half the coefficient of x to both sides of the equation.

2. When completing the square, add the square of half the coefficient of x to both sides of the equation.

Step-by-step explanation:

1. When completing the square, add the square of half the coefficient of x to only the x^2+bx side of the equation.

False, it is added to both sides

2. When completing the square, add the square of half the coefficient of x to both sides of the equation.

True

3. When completing the square, subtract the square of half the coefficient of x from both sides of the equation.

We add it to both sides

4. When completing the square, add half the coefficient of x to both sides of the equation.

False we add the square to both sides

Step-by-step explanation:

When completing the square, we add the square of half the coefficient of x to both sides of the equation.

Where b is the coefficient of x in the equation.

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.