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Question

If one solution of the equation (2x−5)(x+1)(a−1)=0 is x=1, then

A
a=1
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B
a=2
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C
a=3
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D
a=1
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Solution

The correct option is A a=1
(2x5)(x+1)(a1)=0
Using zero product rule,
a1=0
a=1

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