Evaluate 105xx106without multiplying dir...

Evaluate `105xx106`without multiplying directly.

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`105**106 = (100+5)(100+6)`
As, `(x+a)(x+b) = x^2+(a+b)x+b^2`
`(100+5)(100+6) = 100^2+(5+6)**100+5**6`
`10000+1100+30 =11130`

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