You can solve this by first multiplying the six and the eight. Eight times six is equal to forty-eight. You can then subtract that forty-eight from both sides, leaving you with the expression b = -36:
Set up the synthetic division using the coefficients of the numerator and the root in the denominator. Divide using the rules for synthetic division. x^3 + 1 - 7 / x -2 Hope this helps! :)
