Math, asked by Bdimri, 4 months ago

Find the product of (5x–8y) and (9x+5y)
please tell

Answers

Answered by Ravina

1

Answer:

(5x–8y) x (9x+5y) = 45x² - 47xy - 40y²

Step-by-step explanation:

(5x–8y) x (9x+5y)

= {(5x)x(9x) + (5x)x(5y)} - {(8y)x(9x) + (8y)x(5y)}

= {45x² + 25xy} - {72xy + 40y²}

= 45x² + 25xy - 72xy - 40y²

= 45x² - 47xy - 40y²

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