Question

 if z(5z^2 - 80)is divided by 5z(z + 4) then the quotient is. ​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

$z(5 {z}^{2} - 80) \\ \\ = 5z( {z}^{2} - 16) \\ \\ = 5z(( {z})^{2} - ({4})^{2} ) \\ \\ = 5z(z + 4)(z - 4) \\ \\ \\ \frac{z(5 {z}^{2} - 80)}{5z(z + 4)} \\ \\ = \frac{5z(z + 4)(z - 4)}{5z(z + 4)} \\ \\ =( z - 4) \\ \\ \\ using \: formula \: \: \: \: = \: \: {x}^{2} - {y}^{2} = (x + y)(x - y)$