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प्रश्न
Use the direct method to evaluate the following products :
(a – 8) (a + 2)
योग
उत्तर
(a – 8) (a + 2) = (a × a) + (a × 2) + (−8)×a + (−8)(2)
= a2 + 2a − 8a − 16
= a2 − 6a − 16
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