Math, asked by lahari88, 7 hours ago

examples with explanation for two formulas

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Answered by dhimabindu1234

0

Step-by-step explanation:

(1+2)²= 1 ²+2²+2×1×2

9=1+4+4

(2-1)²=2²+1²-2×2×1

1=4+1-4

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