What is the coefficient of the x9y-term in the binomial expansion of (2y + 4x3)4? 4 32 128 512

- 512

Explanation:-

We know that in the binomial expansion is given by

Assume that occurs in the term of the expansion of

Comparing power of x and y in    we get m=1

Thus term for m=1

Thus the coefficient of is 512.

answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.

step-by-step explanation:

p = perimeter

l = length

x=width

p = 2l + 2x

p = 2(l+x)     < ==== perimeter of the base of the box.