Complete the square x^2 - 6 + = -13 +

x^2 - 6x + __9__ = -13 + __9___

Step-by-step explanation:

x^2 - 6x + = -13 +

To complete the square

we take the coefficient of the x term, divide by 2 and square it

-6 /2 = -3

Then square it

(-3)^2=9

What we add to one side, we add to the other

x^2 - 6x + __9__ = -13 + __9___

x^2 - 6x + 9 = -13 + 9

Step-by-step explanation:

x^2 - 6 + = -13 +

I assume that the second term is -6x, not just -6.

x^2 - 6x + = -13 +

To complete the square, take the x-term coefficient, -6, halve it, -3, and then square it, (-3)^2 = 9. Now add 9 to both sides.

x^2 - 6x + 9 = -13 + 9

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.