12yz(z^2+6z-16)÷3z(z+8)
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2
Answer:
4yz(z
2
+6z−16)÷2y(z+8)
2y(z+8)
4yz(z
2
+8z−2z−16)
z+8
2z(z(z+8)−2(z+8))
⇒
(z+8)
2z[(z+8)(z−2)]
2z(z−2)=2z
2
−4z.
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