Math, asked by govindiwuwuwuwueuuea, 5 months ago

find the following product (5/a+7/2b)(5/a-7/2b)

Answers

Answered by rocky90887

0

Answer:

25/a²-49/4b²

Step-by-step explanation:

(5/a+7/2b)(5a-7/2b)

It is of the form (a+b)(a-b)

(a+b)(a-b)=a²-b²

so,

(5/a+7/2b)(5/a-7/2b)= (5/a)²-(7/2b)²=25/a²-49/4b²

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