Question 93710
49x exponent8 - 35x exponent6 - 56x exponent3 over
7x exponent3

49x^8 -35x^6-56x^3/7x^3


Take 7x^3 as common factor

7x^3(7x^5 - 5x^3 - 8)/7x^3

7x^3 in the numerator and denominator is cancelled

7x^5 - 5x^3 - 8

Hence the solution