Answer:
245x^2+2520x^2−2175x−2750
Step-by-step 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 :)
