Find the value of a, if: 9a = 76^2- 67^2 - Vidyadip

Question

Find the value of a, if:
$9a = 76^2- 67^2$

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Answer

$9a = 76^2- 67^2$
$9a = (76 + 67)(76 - 67)$
$9a = 143 × 9$
$\text{a}=\frac{143\times9}{9}$
$= 143$

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