johnyreyes17
johnyreyes17 johnyreyes17
  • 12-03-2018
  • Mathematics
contestada

when using the binomial formula which of the following is the correct step in the expansion of (x+y)^4

Respuesta :

obenam obenam
  • 12-03-2018
The binomial formula is the following:
[tex](x+y)^4=\Sigma_{k=0}^4C_4^kx^ky^{4-k}\\=y^4+xy^3C_4^1+x^2y^2C_4^2\\+x^3yC_4^2+x^4\\=y^4+4xy^3+6x^2y^2+4x^3y+x^4[/tex]
We have used the formula:
[tex]C_4^k=\dfrac{4!}{(4-k)!k!}[/tex]
k goes from 0 to 4. 
Answer Link

Otras preguntas

What are valence electrons??
Which of the following is not considered a difference between Bronze Age and Neolithic technology
what multiplies to -4 and adds up to 7?
1. What to the power of 4 gives you 256 2. What to the power of 2 will give you 9 3. What to the power of 3 will give you 729 PLEASE ANSWER QUICKLY!
Which of the following was not one of the problems faced by delegates at the constitutional convention of 1787
find the constant at which the submarine dives. give your answer in feet per minute and in feet per hour
what happens if the polar jet stream shifts to bring air from the north farther south
What did the british do with India's cotton
Why is it important to know how to multiply fractions in order to divide fractions? Give a real-world example when you would need to know how to multiply fracti
Magnets attract iron. T/F