Question

The binomial expansion of (x2 + y)2 is _____

A. x2 + 2xy + y2
B. x + 2x2y+y2
C. x4 + 2x2y+y?
D. x4 + 2x®y+x?y?

Answer 1

Answer:x^4 + 2yx^2 + y^2

Explanation:

pls rate answer

Answer 2

There are some unknown characters in the answer list, so am not certain which letter. However, the expansion of (x^2 + y)^2 is:

x^4 + 2yx^2 + y^2.

Note: Am using the carrot - shift 6 - ^ to denote "to the power of".

Explanation:

(x^2 + y)^2 = (x^2 + y) * (x^2 + y)

= (x^2 * x^2) + (y*x^2) + (y*x^2) + (y * y)

= x^4 + 2yx^2 + y^2

In words the answer is: x to the 4th plus 2 yx squared plus y squared.