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30.08.2021 •
Mathematics
Thực hiện phép tính(3x-5y)(4x+7y)
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Ответ:
(3x - 5y)(4x + 7y) =
3x × 4x + 3x × 7y - 5y × 4x - 5y × 7y =
12x² + 21xy - 20xy - 35y² =
12x² + xy - 35y²
Ответ:
12x^2 + 1xy -35y^2
Step-by-step explanation:
12x^2 + 21xy -20xy -35y^2 becomes this simplified
Ответ:
ok if u know what 7x84= you can gte this answer then thne n the answer will beif u need more help plz go check out tiger algebra solver ty
Step-by-step explanation: