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Subtract 6a³+3a²-4a+7 from 3a³+3b²-4b+3.

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Final answer:

To subtract 6a³+3a²-4a+7 from 3a³+3b²-4b+3, you subtract the like terms' coefficients and simplify the expression to -3a³.

Step-by-step explanation:

To subtract 6a³+3a²-4a+7 from 3a³+3b²-4b+3, you simply subtract the coefficients of the like terms. In this case, the terms with , , and a are the like terms. Subtracting the coefficients gives us (3a³ - 6a³) + (3a² - 3a²) + (-4a - (-4a)). Simplifying further, we get -3a³ + 0 + 0, which can be written as just -3a³.

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