solve: (a+b)cube-(a-b)cube
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Answer:
hope this helpss
Step-by-step explanation:
mark it as brainlist plzz
Step-by-step explanation:
(a + b)³ - (a - b)³
(a+b - a+b) { (a+b)² + (a+b)(a-b) + (a-b)² }
2b { (a+b)² + (a-b)² + (a²-b²) }
2b { 2(a²+b²) + a² - b² }
2b { 2a² + 2b² + a² - b² }
2b { 3a² + b² }
= 6a²b + 2b³