Evaluate
x^{2}-4x+12
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x^{2}-4x+12
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3x^{2}-2x+6-2x^{2}-2x+6
To find the opposite of 2x^{2}+2x-6, find the opposite of each term.
x^{2}-2x+6-2x+6
Combine 3x^{2} and -2x^{2} to get x^{2}.
x^{2}-4x+6+6
Combine -2x and -2x to get -4x.
x^{2}-4x+12
Add 6 and 6 to get 12.
3x^{2}-2x+6-2x^{2}-2x+6
To find the opposite of 2x^{2}+2x-6, find the opposite of each term.
x^{2}-2x+6-2x+6
Combine 3x^{2} and -2x^{2} to get x^{2}.
x^{2}-4x+6+6
Combine -2x and -2x to get -4x.
x^{2}-4x+12
Add 6 and 6 to get 12.
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