Question

What is the fourth term of (2x + 3y)6?

Answer 1

4320x3y3

4320x4y2

4320x2y4

4320x4y3

Answer 2

no ... im remebering that backwards

Answer 3

6 5 4 3

begins with a 3

Answer 4

eventually itll all fall into place ;)

Answer 5

no its 6C0(2x)^6(3y)^0 ... so its 6C3(2x)^3(3y)^3

Answer 6

sorry for the error

Answer 7

Hint: Use Pascal's triangle

Answer 8

the triangle is useful in the 4320 part, but thats the same on all of them

Answer 9

so D?

Answer 10

not d, both exponents need to be 3s

Answer 11

a

Answer 12

the sum of the powers must be 6 so it can't be D

Answer 13

that one suits it better yes

Answer 14

correct