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  • 07-02-2017
  • Mathematics
Answered

Let f(x)=9-x^2,g(x)=3-x. Find (f-g)(x)

Verified Answer :

SyntaxError
SyntaxError SyntaxError
  • 15-02-2017

\((f-g)(x)=9-x^2-(3-x)\\ (f-g)(x)=9-x^2-3+x\\ (f-g)(x)=-x^2+x-6\\ (f-g)(x)=x^2-x+6\\ (f-g)(x)=(x-3)(x+2)\\ x=3\\x=-2\)

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