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If f(x+1)=3x-9,then value of f(x^2-1)is...

If f(x+1)=3x-9,then value of `f(x^2-1)`is

A

a)`3x^2-9`

B

b)`3x^2-15`

C

c)`x^2-10`

D

d)`3x^2-10`

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UNITED BOOK HOUSE-THE SCOTTISH CHURCH COLLEGIATE SCHOOL-EXERCISE
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