(3x+4y√)(5x-7y) find product
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Given : (3x + 4y) ( 5x - 7y)
To Find : Product
Solution:
(3x + 4y) ( 5x - 7y)
Apply distributive property
= 3x ( 5x - 7y) + 4y ( 5x - 7y)
=> 3x ( 5x) - 3x ( 7y) + 4y(5x) - 4y (7y)
= 15x² - 21xy + 20xy - 28y²
= 15x² - xy - 28y²
(3x + 4y) ( 5x - 7y) = 15x² - xy - 28y²
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