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3-9a^{3}
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3-9a^{3}
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a^{3}+7-3a^{3}-\left(4-\left(-2a^{3}\right)\right)-5a^{3}
To find the opposite of -7+3a^{3}, find the opposite of each term.
-2a^{3}+7-\left(4-\left(-2a^{3}\right)\right)-5a^{3}
Combine a^{3} and -3a^{3} to get -2a^{3}.
-2a^{3}+7-\left(4+2a^{3}\right)-5a^{3}
The opposite of -2a^{3} is 2a^{3}.
-2a^{3}+7-4-2a^{3}-5a^{3}
To find the opposite of 4+2a^{3}, find the opposite of each term.
-2a^{3}+3-2a^{3}-5a^{3}
Subtract 4 from 7 to get 3.
-4a^{3}+3-5a^{3}
Combine -2a^{3} and -2a^{3} to get -4a^{3}.
-9a^{3}+3
Combine -4a^{3} and -5a^{3} to get -9a^{3}.
a^{3}+7-3a^{3}-\left(4-\left(-2a^{3}\right)\right)-5a^{3}
To find the opposite of -7+3a^{3}, find the opposite of each term.
-2a^{3}+7-\left(4-\left(-2a^{3}\right)\right)-5a^{3}
Combine a^{3} and -3a^{3} to get -2a^{3}.
-2a^{3}+7-\left(4+2a^{3}\right)-5a^{3}
The opposite of -2a^{3} is 2a^{3}.
-2a^{3}+7-4-2a^{3}-5a^{3}
To find the opposite of 4+2a^{3}, find the opposite of each term.
-2a^{3}+3-2a^{3}-5a^{3}
Subtract 4 from 7 to get 3.
-4a^{3}+3-5a^{3}
Combine -2a^{3} and -2a^{3} to get -4a^{3}.
-9a^{3}+3
Combine -4a^{3} and -5a^{3} to get -9a^{3}.
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