Question

Which of the following is equivalent to (1/4+y)^4?

a) (16+8y+y^2)(y^2+8y+16)
b) (y^3+1/4y^2+1/16y+1/64)(1/4+y)
c) (y^3+3/4y^2+3/16y+1/64)(1/4+y)
d) (4+y)^2(4+y)^2

Answer 1

what do you think? :)

Answer 2

b?

Answer 3

\[(\frac{1}{4}+y)^4=(\frac{1}{4}+y)^3(\frac{1}{4}+y)\]expand the \((\frac{1}{4}+y)^3\) part using formula\[(a+b)^3=a^3+3a^2b+3ab^2+b^3\]and see what happens :)

Answer 4

no clue lol im not good at this

Answer 5

C

Answer 6

thanx