Question

(3x³+5-3x⁴) - (-5x⁴+4+x³)
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Answer 1

`{8x}^(4) + {2x}^(3) + 1`

combine the numbers with similar exponents. don't forget the subtraction will make turn them opposite

Answer 2

3330 because the radius is five and secondary radius is 30

Explanation: