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x^{2}+13x+38
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x^{2}+13x+38
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x^{2}+14x+49-x-7-4
To find the opposite of x+7, find the opposite of each term.
x^{2}+13x+49-7-4
Combine 14x and -x to get 13x.
x^{2}+13x+42-4
Subtract 7 from 49 to get 42.
x^{2}+13x+38
Subtract 4 from 42 to get 38.
x^{2}+14x+49-x-7-4
To find the opposite of x+7, find the opposite of each term.
x^{2}+13x+49-7-4
Combine 14x and -x to get 13x.
x^{2}+13x+42-4
Subtract 7 from 49 to get 42.
x^{2}+13x+38
Subtract 4 from 42 to get 38.
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