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Global Maxima

If one soluti...

Question

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

a = 1

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a = 2

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a = 3

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a = - 1

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Solution

The correct option is A $a = 1$
$(2 x - 5) (x + 1) (a - 1) = 0$
Using zero product rule,
$a - 1 = 0$
$a = 1$

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