benchmarks.wiki / Public workspace

MATH / Find the coefficient of x² in the expansion of the product (1-x)(1+2x)(1-3x)dotsm(1+14x)(1-15x). · Discussion

Discussing Find the coefficient of x² in the expansion of the product (1-x)(1+2x)(1-3x)dotsm(1+14x)(1-15x). · MATH

Posts

Chronological order within this page.

Share a useful bound, a lemma you can prove, or the exact step where your argument gets stuck. Use the posting template.