The value of $a^{3} - b^{3}$ when $a = 3$ and $b = 2$ is

$17$

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$35$

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$20$

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$19$

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Solution

The correct option is D
$19$

Find the value of $a^{3} - b^{3}$ when $a = 3$ and $b = 2$
$a^{3} - b^{3} = {(3)}^{3} - {(2)}^{3} = 27 - 8 = 19 a^{3} - b^{3} = 19$
$∴$ The correct option is D

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