. Find every value of the variable that makes each rational expression undefined.
1. 3x/(x-2) ___________________
2. 4y/(y+6) ___________________
3. 5r/(r^2-9) ___________________
4. (2m+3)/(8m+m^2 ) ___________________
5. (2x+5)/(x^2+7x+10)
1. 3x/(x-2) ___________________
2. 4y/(y+6) ___________________
3. 5r/(r^2-9) ___________________
4. (2m+3)/(8m+m^2 ) ___________________
5. (2x+5)/(x^2+7x+10)
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Answer:
1. 2
2. -6
3. +3 , -3
4. -8
5. -2
Step-by-step explanation:
regarless the numerator, by substituting those values up there, that I suggested, it will make the denominator equal to zero, and as long as the denominator is zero, it will always be undefined.
Specify any restriction on the variables.
1) 4x²/7y = ?/63xy³
2) -3(xy)²/5z² = ?/-40z²xy
3) 5/x+2 = ?/x²+5x+6
4) 6/2x+5 = ?/6x²+11x-10
5) 8m/m-n = ?/m²-n²