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12x^{2}+11
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12x^{2}+11
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18x^{2}+4-\left(6x^{2}-12+5\right)
Use the distributive property to multiply 6 by x^{2}-2.
18x^{2}+4-\left(6x^{2}-7\right)
Add -12 and 5 to get -7.
18x^{2}+4-6x^{2}+7
To find the opposite of 6x^{2}-7, find the opposite of each term.
12x^{2}+4+7
Combine 18x^{2} and -6x^{2} to get 12x^{2}.
12x^{2}+11
Add 4 and 7 to get 11.
18x^{2}+4-\left(6x^{2}-12+5\right)
Use the distributive property to multiply 6 by x^{2}-2.
18x^{2}+4-\left(6x^{2}-7\right)
Add -12 and 5 to get -7.
18x^{2}+4-6x^{2}+7
To find the opposite of 6x^{2}-7, find the opposite of each term.
12x^{2}+4+7
Combine 18x^{2} and -6x^{2} to get 12x^{2}.
12x^{2}+11
Add 4 and 7 to get 11.
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