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Prettygirlyaya
11.06.2020 •
Mathematics
What equation results from completing the square and then factoring? x^2+2x=9
a. (x+2)^2=8
b. (x+1)^2=8
c.(x+1)^2=10
d.(x+2)^2=10
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Ответ:
c.(x+1)^2=10
Step-by-step explanation:
Completing the square:
We use the following relation:
In this question:
We have to find a.
Thus, we have to add 1 on the right side of the equality.
We end up with:
So the correct answer is:
c.(x+1)^2=10
Ответ:
932
Step-by-step explanation: