Question

Find the quotient . . . . . .

Answer 1

The answer should be;
-b^2 + 4b

-7b^3 / 7b-
-7 / 7 = -1
b^3 / b (^1) = b^2

Note that if there is no exponent after a variable, it's automatically a 1, also, when dividing exponents, you are basically subtracting... 
Thus b^3 / b actually equals b^3 - b^1

Firstly, you need to multiply -1 by b^2 (since those two were originally together)
= -1b^2


Now you need to divide 28b^2 by 7b,

28 / 7 = 4 and b^2 / b = b
4 * b = 4b

So, your answer should be 
-b^2 + 4b