Question

What value is added to both sides of the equation x2 – 4x = –2 in order to solve by completing the square? (1 point)
4
2
–2
–4

Answer 1

Take half of the coefficient of the x term, and square it.

Answer 2

in a quadratic \[ax^2 + bx = c\]

you need to add

\[(\frac{b}{2})^2\]

to both sides

Answer 3

so i add 2 to both sides?

Answer 4

Half of -4 is -2. Square of -2 is 4. Add 4 to both sides.

Answer 5

nope.... read the information again

Answer 6

x2 – 4x = –2
add two in both sides so you get the quadratic equation and simplify that