(2x-y)3 - (2x+y)3 simplify this
Answers
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1
Step-by-step explanation:
(2x+y)
3
+(2x−y)
3
⇒ [(2x)
2
]
3
−[(y)
2
]
3
[ Since, (a+b)(a−b)=a
2
−b
2
]
⇒ [4x
2
]
3
−[y
2
]
3
⇒ 64x
6
−y
6
∴ (2x+y)
3
+(2x−y)
3
=64x
6
−y
6
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