Question

please send me fast class 9 ​

Answer 1

It can be noticed that the equation is in the form of a² - b²

Where a is 5/4 or √( 25x² /4)


And b is 1/3 y or √(y² /9)



And we know that a² -b² =(a+b)(a-b)



So it will be equal to (5x/4 +y/3)(5x/4 - y/3)

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