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1. a + b = 6, ab = 4 হলে , a³ + b³ = কত?

Answer: Option B

Explanation:

a^{3} + b^{3} = {(a + b)}^{3} - 3 a b (a + b) = 6^{3} - 3 \times 4 \times 6 = 216 - 72 = 144

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