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Precalculus
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OpenStudy (anonymous):
help please find the domain of the rational function. Give the answer in interval notation. R(x)= -3x^2/x^2+6x-55
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OpenStudy (anonymous):
denominator: x^2+6x-55 x^2+6x-55=0 < --Factor (x-5)(x+11)=0 x=5, x=-11 Domain: all real numbers except: 5 and -11
OpenStudy (anonymous):
the interval would be: (-infinity, -11) u (-11,5) u (5, infinity)
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