Question

The bionomial expansion of (2x-y)^3 is
A.x^3-6x^2y+12y^2-8y^3
B.x^3-3x^2y+3xy^2-y^3
C.2^3(X^3-3X^2Y+3XY^2-Y^3)
D.8x^3-12x^2y+6x^2-y^3

Answer 1

Are you familiar with Pascal's triangle to figure these out?

Answer 2

yea

Answer 3

Then use it and your answer will be much easier to get!

Answer 4

what do u think the answe is i think i got it but what do u think

Answer 5

I will let you know...let me use the triangle...will only take a tiny...

Answer 6

ok

Answer 7

Its D.

Answer 8

ok got another ?

Answer 9

got another? go ahead!

Answer 10

Dont type all the anwers out, it takes too much time. Just give me the problem.

Answer 11

which of the following is correct about pascals triangle is correct
A.the nth row gives the coefficants in the expansion (x+y)^n-1
B.the method of generating pascals triangle consist of adding adjacent terms on the preceding row to determine the term below them
C.the nth row gives the coeficients in the expansion of (x+y)^n
D.each row is palindrome that is it is the same if read from left to right
SELECT ALL THAT ARE CORRECT

Answer 12

All of them are correct except C. A and C argue against each other so they both cannot be true. But A is true, so C is not. All but C.

Answer 13

the coefficients expansion of (X+Y)^6

Answer 14

The coefficients to the 6th power from the triangle are: 1, 6, 15, 20, 15, 6, 1