Simplify : (a + b)3 – (a – b)3
Answers
Answered by
1
Answer:
(a + b)³ + (a - b)³
= a³ + b³ + 3ab (a + b) + a³ - 3ab (a -
Answered by
0
Answer:
(a+b)
3
+(a−b)
3
+6a(a
2
−b
2
)=(a
3
+3a
2
b+3ab
2
+b
3
)+(a
3
−3a
2
b+3ab
2
−b
3
)+(6a
3
−6ab
2
)
=(2a
3
+6ab
2
)+(6a
3
−6ab
2
)
=8a
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