Question

Which of the following is the expansion of (x + 11)^4?

A) x^4 + 4x^3 + 6x^2 + 4x + 1
B) None of the Above
C) 1 + 44x + 726x^2 + 5324x^3 + 14641x^4
D) x^4 + 11x^3 + 121x^2 + 1331x + 14641

Answer 1

I get none of the above?
X^4 + 44x^3 + 726 x^2 + 5324 X + 13641

Answer 2

thank you. any input, nikvist?

Answer 3

the first term in the expansion must be x^4 and the last term must be 11^4=121^2=14641
so you can say from this that either B) or D) is the answer
do you know how to use the binomial expansion?

Answer 4

this might help you: http://www.mathsrev.com/binomial-expansion/