Question

(7x-10) (7x+5) (5x+55)

Answer 1

245x^2+2520x^2−2175x−2750

Explanation:

=((7x−10)(7x+5))(5x+55)

=((7x−10)(7x+5))(5x)+((7x−10)(7x+5))(55)

=245x^3−175x^2−250x+2695x^2−1925x−2750

=245x^2+2520x^2−2175x−2750

Hope it helps :)