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16x^{2}+7-\left(7x^{2}-14+9\right)
Use the distributive property to multiply 7 by x^{2}-2.
16x^{2}+7-\left(7x^{2}-5\right)
Add -14 and 9 to get -5.
16x^{2}+7-7x^{2}+5
To find the opposite of 7x^{2}-5, find the opposite of each term.
9x^{2}+7+5
Combine 16x^{2} and -7x^{2} to get 9x^{2}.
9x^{2}+12
Add 7 and 5 to get 12.
16x^{2}+7-\left(7x^{2}-14+9\right)
Use the distributive property to multiply 7 by x^{2}-2.
16x^{2}+7-\left(7x^{2}-5\right)
Add -14 and 9 to get -5.
16x^{2}+7-7x^{2}+5
To find the opposite of 7x^{2}-5, find the opposite of each term.
9x^{2}+7+5
Combine 16x^{2} and -7x^{2} to get 9x^{2}.
9x^{2}+12
Add 7 and 5 to get 12.