Evaluate
-3x^{3}-4
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-3x^{3}-4
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-x^{3}+2xy+4-2x^{3}-2xy-8
To find the opposite of 2x^{3}+2xy+8, find the opposite of each term.
-x^{3}+4-2x^{3}-8
Combine 2xy and -2xy to get 0.
-x^{3}-4-2x^{3}
Subtract 8 from 4 to get -4.
-3x^{3}-4
Combine -x^{3} and -2x^{3} to get -3x^{3}.
-x^{3}+2xy+4-2x^{3}-2xy-8
To find the opposite of 2x^{3}+2xy+8, find the opposite of each term.
-x^{3}+4-2x^{3}-8
Combine 2xy and -2xy to get 0.
-x^{3}-4-2x^{3}
Subtract 8 from 4 to get -4.
-3x^{3}-4
Combine -x^{3} and -2x^{3} to get -3x^{3}.
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