Question

divide the following by the method of factorisation 36 mn(25m²-49m²)/4mn(5m+7n)​

Answer 1

Answer:

45m-63n

NOTE: There is an error in the question; it should be (25m²-49n²), and not (25m²-49m²)

Step-by-step explanation:

Given 36mn(25m²-49m²)/4mn(5m+7n)​

1) [Cancel 4mn from both numerator and denominator[

=> 9(25m²-49m²)/(5m+7n)

2) (25m²-49n²) is in the format of (a²-b²) , which can be written as (a-b)(a+b)

=> (25m²-49n²)

=> ((5m)²-(7n)²)

=> (5m+7n)(5m-7n)

3) Now, substitute the value back into the original equation and cancel the common terms

=> 9(5m+7n)(5m-7n)/(5m+7n)

=> 9(5m-7n)

=> 45m-63n

Hope you understood. If yes, then plz don't forget to mark my answer as the brainliest

Answer 2

Answer:

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Step-by-step explanation:

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