i'm confused....

If f(x)=3x+5 and g(x)=x^2+2x-3, determine x such that f(g(x))=g(f(x)).

Printable View

- Jun 15th 2009, 08:01 PMextraordinarymachinecomposite functions
i'm confused....

If f(x)=3x+5 and g(x)=x^2+2x-3, determine x such that f(g(x))=g(f(x)). - Jun 15th 2009, 08:08 PMShowcase_22

So we require the solutions to

So the values of x we require are and . - Jun 15th 2009, 08:09 PMI-Think
and

Equate these two expressions and solve to answer your question

Edit

Showcase 22 faster