Skip to content / Đến nội dung
ThichHocToan.com

1987 AMC 12 Question 1

AMC12 · 1987 AMC 12

Question 1

$(1+x^2)(1-x^3)$ equals
  1. $1-x^5$
  2. $1-x^6$
  3. $1+x^2-x^3$
  4. $1+x^2-x^3-x^5$
  5. $1+x^2-x^3-x^6$