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shutvik [7]
1 year ago
14

9. Simplify using the horizontal method. (2n² + 4n+3)(2n - 3) A. 4n³+2n²-6n-9

Mathematics
1 answer:
Dmitry [639]1 year ago
3 0

Answer:

A. 4n³+2n²-6n-9

Step-by-step explanation:

➟ (2n²+4n+3)(2n−3)

➟ (2n²+4n+3)(2n+−3)

➟ (2n²)(2n)+(2n²)(−3)+(4n)(2n)+(4n)(−3)+(3)(2n)+(3)(−3)

➟ 4n³−6n²+8n²−12n+6n−9

➟ 4n³+2n²−6n−9

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Step-by-step explanation: An equation for this could be:

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Dafna11 [192]

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