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Question

Factorise the expressions and divide them as directed.
4yz(z2+6z16)÷2y(z+8)

A
2z(z2)
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B
2z(z+2)
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C
4z(z2)
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D
2y(z2)
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Solution

The correct option is A 2z(z2)
4yz(z2+6z16)÷2y(z+8)
=4yz(z2+6z16)2y(z+8)
=4yz(z2+8z2z16)2y(z+8)
=4yz×(z(z+8)2(z+8))2y(z+8)
=4yz(z2)(z+8)2y(z+8)
=2z(z2)

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