SOLUTION: If F(x)=x^2+3x-5 And G(x)=2x-3 Determine ... - Algebra

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SOLUTION: If f(x)=x^2+3x-5 and g(x)=2x-3 Determine each a) x when f(x)=g(x) b) g^-1(-5) Thank you Algebra -> Functions -> SOLUTION: If f(x)=x^2+3x-5 and g(x)=2x-3 Determine each a) x when f(x)=g(x) b) g^-1(-5) Thank you Log On
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Question 937562: If f(x)=x^2+3x-5 and g(x)=2x-3 Determine each a) x when f(x)=g(x) b) g^-1(-5) Thank you Answer by ewatrrr(24785) About Me (Show Source): You can put this solution on YOUR website! f(x)=x^2+3x-5 and g(x)=2x-3 ..... a) x^2+3x-5 = 2x-3 x^2 + x - 2 = 0 (x+2)(x-1)= 0 x = -2, 1 ..... g(x)=2x-3 0r y = 2x-3 y = 2x-3 Inverse (exchanging x and y) x = 2y-3 (x+3)/2 = y ....... g^-1(-5) = (-5+3)/2 = -1

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