(2a + 7) × (2a^2 + 3a +4)
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Answer : 4a^3 + 20a^2 + 29a + 28
Step-by-step explanation:
2a(2a^2 + 3a + 4) +7(2a^2 + 3a + 4)
4a^3 + 6a^2 + 8a + 14a^2 + 21a + 28
4a^3 + 6a^2 + 14a^2 + 8a + 21a + 28
4a^3 + 20a^2 + 29a + 28
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