Question

विस्‍तार करा : (5 x-7) (5 x-9)

Answer 1

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Answer 2

विस्‍तार:

$(5x - 7)(5x - 9) \\ \\ = 25 {x}^{2} - 45x - 35x + 63 \\ \\ = 25 {x}^{2} - 80x + 63$

$(5x - 7)(5x - 9) = 25 {x}^{2} - 80x + 63$