Using the expression (3 x^{2}-7 x+2), when a certain number is put in for (x), the result

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Using the expression $3 x^{2}-7 x+2$, when a certain number is put in for $x$, the result is 50 . What is the value of $x$ ? $-2$

$-3$

2 3

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Contemporary Mathematics

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Using the expression (3 x^{2}-7 x+2), when a certain number is put in for (x), the result

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Contemporary Mathematics

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