x² + y² - y
2. Simplify:
- y² + x
+ y² + y
X
x2 - y?
Answers
Answered by
0
Answer:
x2=y
x=y/x is the solution of problem
Answered by
0
Answer:
It is not exactly clear what the questioner had in mind here.
I will assume we are to simplify the expression (and that
X
=
x
)
f
(
x
,
y
)
=
x
2
+
2
x
y
+
y
2
f
(
x
,
y
)
is the well known expansion of
(
x
+
y
)
2
Check:
(
x
+
y
)
(
x
+
y
)
=
x
2
+
x
y
+
y
x
+
y
2
=
x
2
+
2
x
y
+
y
2
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