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प्रश्न
Use the formula to multiply the following.
(a + 6) (a − 6)
बेरीज
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उत्तर
It is known that, (a + b) (a − b) = a2 − b2.
(a + 6) (a − 6)
= (a)2 − (6)2
= a2 − 36
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