a²-b²+2a+1 factorise
pls show the process
Answers
Answered by
0
Answer:
Rewrite
1
as
1
2
.
−
b
2
+
a
2
−
2
a
+
1
2
Check that the middle term is two times the product of the numbers being squared in the first term and third term.
2
a
=
2
⋅
a
⋅
1
Rewrite the polynomial.
−
b
2
+
a
2
−
2
⋅
a
⋅
1
+
1
2
Factor using the perfect square trinomial rule
a
2
−
2
a
b
+
b
2
=
(
a
−
b
)
2
, where
a
=
a
and
b
=
1
.
−
b
2
+
(
a
−
1
)
2
Reorder
−
b
2
and
(
a
−
1
)
2
.
(
a
−
1
)
2
−
b
2
Similar questions