by how much is a^2-2ab-b^2more than 2a^2+2sb+2b^2
Answers
Answered by
0
(a²-2ab-b²)-(2a²+2ab+2b²)
=a²-2ab-b²-2a²-2ab-2b²
=a²-2a²-2ab-2ab-b²-2b²
= -a²-4ab-3b²
plzzzz mark me as brainliest
Answered by
0
Answer:
The value of
∣
∣
∣
∣
∣
∣
∣
∣
1+a
2
−b
2
2ab
2b
2ab
1−a
2
+b
2
−2a
−2b
2a
1−a
2
−b
2
∣
∣
∣
∣
∣
∣
∣
∣
is
C
1
→C
1
−bC
3
,C
2
→C
2
+aC
3
=
∣
∣
∣
∣
∣
∣
∣
∣
1+a
2
+b
2
0
b(1+a
2
+b
2
)
0
1+a
2
+b
2
−a(1+b
2
+a
2
)
−2b
2a
1−a
2
−b
2
∣
∣
∣
∣
∣
∣
∣
∣
=(1+a
2
+b
2
)
2
∣
∣
∣
∣
∣
∣
∣
∣
1
0
b
0
1
−a
−2b
2a
1−a
2
−b
2
∣
∣
∣
∣
∣
∣
∣
∣
=(1+a
2
+b
2
)
2
{(1−a
2
−b
2
+2a
2
)+2b
2
}
=(1+a
2
+b
2
)
3
Similar questions