Question

What value is added to both sides of the equation x2 − 2x = 10 in order to solve by completing the square

Answer 1

Your answer is +1. I.e. Add 1 to each side $x^{2} -2x=10 \\(x^{2} -2x)+1=(10)+1 \\ x^2-2x+1=11 \\ (x-1)^2=11 \\ x-1= \sqrt{11} \\ x=\sqrt{11}+1$

Answer 2

Answer:

1

Step-by-step explanation:

I just took the test. Hope this helps