Macymartin99651 Macymartin99651
  • 27-02-2024
  • Mathematics
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Find the sum of the coefficients in the polynomial $3(3x⁷ + 8x⁴ - 7) + 7(x⁵ - 7x² + 5)$ when it is fully simplified.
a) 27
b) 35
c) 49
d) 56

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