lets solve the exponents 6to the power of 8 equal to1 679 616z ,5 to the power of 2 equal to 25
now 1679616 multiplie by 7 equal 11 757 312 and 1 679 616 multiplie by 25 equal41 990 400
now 11 757 312 adding by 41 990 400 equal to 53 747 712
hope that my answer help u and be the best