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If f(x+1)=x^(2)-3x+2 then f(x) is equal ...

If `f(x+1)=x^(2)-3x+2` then `f(x)` is equal to

A

`x^(2) -5x +4`

B

`x^(2)-5x +6`

C

`x^(2) +3x +3`

D

`x^(2) -3x+1`

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The correct Answer is:
B
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