Answer:z-3/z+3-z-9/z2+3z Final result : 3 • (z3 + z2 - z - 3) ——————————— z2 Step-by-step explanation:Step 1 : 9 Simplify —— z2Equation at the end of step 1 : 3 9 ((((z-—)+3)-z)-——)+3z z z2Step 2 : 3 Simplify — zEquation at the end of step 2 : 3 9 ((((z - —) + 3) - z) - ——) + 3z z z2 Step 3 :Rewriting the whole as an Equivalent Fraction : 3.1 Subtracting a fraction from a wholeRewrite the whole as a fraction using z as the denominator : z z • z z = — = —— 1 z