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Evaluate without multiplying directly 103 × 107 and 95 × 96 |
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Answer» = 11,02195×96 = 9,120Step-by-step explanation:1) (100 + 3) (100 + 7)Now, by using identity (X + a) (x + b) = x² + (a+b)*x + abSo, x = 100 , a = 3 , b = 7= (100)² + (3+7)*100 + (3*7)= 10000 + 1000 + 21= 110212) (90 + 5) (90 + 6)by using identity (x + a) (x + b) = x² + (a+b)*x + abSo, x = 90 , a = 5 , b = 6= (90)² + (5+6)*90 + (5*6)= 8100 + 990 + 30= 9120 |
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