Math, asked by minadevi60096, 7 months ago

please help me in doing these please don't say no and please do it nicely mate in a copy of you do it I will follow you and mark as braniliest and in the next question I will give 100 mark ​

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Answered by shivanshsaxena70
0

please mark me as brainlist

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Answered by rubica
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Step-by-step explanation:

1] (3y + 5) × (6y + 8)

3y(6y + 8) + 5(6y + 8)

= 18y² + 24y + 30y + 40

= 18y² + 54y + 40

2] (3x - 4y) × (8x - 6y)

3x(8x - 6y) - 4y(8x - 6y)

= 24x² - 18xy - 32xy + 24y²

= 24x² - 50xy + 24y²

3] (x + 7) × (x - 4)

x(x - 4) + 7(x - 4)

= x² - 4x + 7x - 28

= x² + 3x - 28

4] (2x + 3y) × (2x - 7y)

2x(2x - 7y) + 3y(2x - 7y)

= 4x² - 14xy + 6xy - 21y²

= 4x² - 8xy - 21y²

5] (3a - 4b) × (4a - 3b)

3a(4a - 3b) - 4b(4a - 3b)

= 12a² - 9ab - 16ab + 12b²

= 12a² - 25ab + 12b²

IT TOOK A LOT OF TIME TO WRITE

PLEASE MARK ME AS BRAINLIEST

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