#2(1-x)^n - (1+x)^n# equals?

Related questions

• What is the binomial theorem?
• How do I use the binomial theorem to expand #(d-4b)^3#?
• How do I use the the binomial theorem to expand #(t + w)^4#?
• How do I use the the binomial theorem to expand #(v - u)^6#?
• How do I use the binomial theorem to find the constant term?
• How do you find the coefficient of x^5 in the expansion of (2x+3)(x+1)^8?
• How do you find the coefficient of x^6 in the expansion of #(2x+3)^10#?
• How do you use the binomial series to expand #f(x)=1/(sqrt(1+x^2))#?
• How do you use the binomial series to expand #1 / (1+x)^4#?
• How do you use the binomial series to expand #f(x)=(1+x)^(1/3 )#?