If $5 (1 - 2 x) = 15$ ; evaluate $x^{2} - 3 x + 2$ .

1

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6

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Solution

The correct option is D $6$
Given, $5 (1 - 2 x) = 15$
$\Rightarrow 5 - 10 x = 15$
$\Rightarrow - 10 x = 10$
$\Rightarrow x = - 1$
Substituitng in $x^{2} - 3 x + 2$ . we get
$(- 1)^{2} - 3 (- 1) + 2$
$= 1 + 3 + 2$
$= 6$

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