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Finding the Value of an Expression

Find the valu...

Question

Find the value of a, if the value of $2 x^{2} + x - a$ equals to 5, when x=0?

-5

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-3

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Solution

The correct option is A -5
Given: $2 x^{2} + x - a$ = 5
when x=0,
$\Rightarrow (2 (0)^{2} + 0 - a = 5 \Rightarrow 0 + 0 - a = 5 \Rightarrow a = - 5$

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