Question

expand the following (5x-7)(5x-9)

Answer 1

I hope this will be helpful to you
(5x-7)(5x-9)
(5x-7)[(5x-7)-2]
(5x-7)^2 - 2(5x-7)
25x^2 + 49 - 70x - 10x + 14
25x^2 -80x + 63

Answer 2

$(5x - 7) \: (5x - 9) \\ 5x(5x - 9) \: - 7(5x - 9) \\ 25 {x}^{2} - 45x \: - 35x + 63 \\ 25 {x}^{2} - 10x + 63 \\ hope \: this \: will \: help \: you$