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-\left(x^{2}-6x+9\right)+2
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(x-3\right)^{2}.
-x^{2}+6x-9+2
To find the opposite of x^{2}-6x+9, find the opposite of each term.
-x^{2}+6x-7
Add -9 and 2 to get -7.
-\left(x^{2}-6x+9\right)+2
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(x-3\right)^{2}.
-x^{2}+6x-9+2
To find the opposite of x^{2}-6x+9, find the opposite of each term.
-x^{2}+6x-7
Add -9 and 2 to get -7.