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Question

Tick (✓) the correct answer:
4z2 − 8z + 3 = ?
(a) (2z − 1)(2z − 3)
(b) (2z + 1)(3 − 2z)
(c) (2z + 3)(3z − 1)
(c) (z − 1)(4z − 3)

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Solution

(a) (2z − 1)(2z − 3)

4z2-8z+3=4z2-6z-2z+3=2z(2z-3)-1(2z-3)=(2z-1)(2z-3)


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