(vi) x2 + 2x +1 by x2 + 2x +1
Answers
Answered by
1
Answer:
1 because same fractions are divided like 2/2=1
Answered by
2
Answer:
found
x
−
1
x
+
1
Explanation:
When we look at
x
2
−
2
x
+
1
it resembles square of something which is
(
x
−
1
)
2
=
x
2
−
2
x
+
1
According to this rule:
a
2
−
b
2
=
(
a
−
b
)
.
(
a
+
b
)
x
2
−
1
=
(
x
−
1
)
.
(
x
+
1
)
x
2
−
2
x
+
1
x
2
−
1
=
(
x
−
1
)
2
(
x
−
1
)
(
x
+
1
)
So
(
x
−
1
)
2
and
(
x
−
1
)
simplify each other. Then we find:
x
−
1
x
+
1
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