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Expand (1+x)^-3....

Expand `(1+x)^-3`.

Text Solution

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`(1+x)^(-1)=1+(-3)x+((-3)(-3-1)x^(2))/(2!)`
`((-3)(-3-1)(-3-2))/(3!)x^(3)+`
`=1-3x+(12)/(2)x^(2)-(60)/(3xx2)x^(3)+……………`
`=1-3x+6x^(2)-10x^(3)+……………`
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