Question

Divide:. z(5z² -80) by 5z(z+4)​

Answer 1

Answer:

hope you will understand so answer is

z-4

Answer 2

Answer:

z + 4

Step-by-step explanation:

$\frac{z(5 {z}^{2} - 80)}{5z(z + 4)} \\ \\ \\ = \frac{z \times 5( {z}^{2} - 16) }{5z(z + 4)} \\ \\ = \frac{5z( {z}^{2} - 16)}{5z(z + 4)} \\ \\ = \frac{ \cancel{5z}( {z}^{2} - 16)}{ \cancel{5z}(z + 4)} \\ \\ = \frac{ {z}^{2} + 16 }{z + 4} \\ \\ = \frac{ {(z + 4)}^{2} }{z + 4} \\ \\ = {(z + 4)}^{2 - 1} \\ \\ = {(z + 4)}^{1} \\ \\ = \underline{ \underline{ z + 4}}$