Simplify (2a+b)^3+(2a-b)^3
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Step-by-step explanation:
2a + b)3 + (2a - b)3 = (8a3 + 12a2b + 3ab2 + b3 ) + (8a3 - 12a2b + 3ab2 - b3)
= 16a3 + 6ab2
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