Check Point - r-25=0 => (r-5)(r+5)=0 r=5...

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Check Point Week 3 The expression is undefined when the denominator is 0 => 4x=0 =>x=0 => the number for which the rational expression is undefined is 0
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The expression is undefined when the denominator is 0
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Unformatted text preview: r-25=0 => (r-5)(r+5)=0 r=5 => The numbers for which the expression is undefined are +5 and -5...
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Check Point - r-25=0 => (r-5)(r+5)=0 r=5...

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