Find the sum of the series.

Find the sum of the series
x(x + y) + x² (x² + y²) + x³ (x³ + y³) … to n terms.

Solution:

Find the sum of the series
1 + (1 + x) + (1 + x + x²) + … to n terms, x ≠ 1.

Solution:

More Solutions:

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