The product of two numbers is $x^{2} + x - 2$ . If one of the numbers is $x - 1$ , Then the other number is

$x - 2$

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$x + 2$

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$x + 1$

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$x - 1$

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Solution

The correct option is B
$x + 2$

The the other number be $y$ .

Then, we must have, $(x - 1) \times y$ = $x^{2} + x - 2$

$⟹$ $y$ = $\frac{x^{2} + x - 2}{x - 1}$

We perform division as follows.

Hence $y$ = $x + 2$ .

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