i need to find the inverse of f(x) = x^2-4x+3 how do you do it when you have x^2 and x?
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Originally Posted by katt i need to find the inverse of f(x) = x^2-4x+3 how do you do it when you have x^2 and x? complete the square.
Y=x^2-4x+3 => x^2-4x+3-y=0 delta'=4-3+y=1+y => x1=2+squareroot(1+y) and x2=2-squareroot(1-y) this is the inverse you choose x1 or x2 depending on the constrains given .
swap x and y ... restrict the domain of the original function to , and the inverse function is
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