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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please mark me as brainlist
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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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