You can take x = a, 2y = b and then can apply the binomial theorem.
The expansion of given expression is given by:
Option D: 
is
<h3>What is binomial theorem?</h3>
It provides algebraic expansion of exponentiated(integer) binomial.
According to binomial theorem,
<h3>How to use binomial theorem for given expression?</h3>
Taking a = x, and b =2y, we have n = 7, thus:
Thus, Option D: is correct.
Learn more about binomial theorem here:
brainly.com/question/86555
sides of right angle triangle follows Pythagoras theorem
a^2 + b^2 = c^2
where a, b and c are sides of triangle
if you check, option 3 follow this. so answer is option 3
+
equals
.
First, simplify
to
and also
to
. Your problem should look like:
+
.
Second, find the least common denominator of
and
to get 9.
Third, make the denominators the same as the least common denominator (LCD). Your problem should look like:
+
.
Fourth, simplify to get the denominators the same. Your problem should look like:
+
.
Fifth, join the denominators. Your problem should look like:
.
Sixth, simplify. Your problem should look like:
, which is the answer.
