Thực hiện phép tính(3x-5y)(4x+7y)

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Miasia asked Jan 17, 2022

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3 votes

Thực hiện phép tính(3x-5y)(4x+7y)

Mathematics
high-school

Miasia asked Jan 17, 2022

by Miasia

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19 votes

Answer:

12x^2 + 1xy -35y^2

Explanation:

12x^2 + 21xy -20xy -35y^2 becomes this simplified

Aheigins answered Jan 18, 2022

by Aheigins

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8 votes

(3x - 5y)(4x + 7y) =

3x × 4x + 3x × 7y - 5y × 4x - 5y × 7y =

12x² + 21xy - 20xy - 35y² =

12x² + xy - 35y²

Evgen answered Jan 23, 2022

by Evgen

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