Question

$(5x - 3)(7x - 3)$

Answer 1

$(5x - 3) \: (7x - 3) \\ 5x(7x - 3) - 3(7x - 3) \\ 35x {}^{2} - 15x \: - 21x + 9 \\ 35x {}^{2} - 36x + 9$
may be it is right.....
if not,,, so sorry for that....

Answer 2

Answer :-

(5x - 3)(7x - 3)

      = 5x(7x - 3) -3(7x - 3)

      = 35x² - 15x - 21x +9

     ⇒ 35x² - 36x +9

HOPE IT HELPS ...