SOLUTION: Simplify : identify x values that make expression undefined. 5. 3x^2-9x-12 over __________

SOLUTION: Simplify : identify x values that make expression undefined. 5. 3x^2-9x-12 over ___________ 6x^2+9x+3

Question 189652: Simplify : identify x values that make expression undefined.
5. 3x^2-9x-12 over
____________

6x^2+9x+3

Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
if the value of x is such that it make the denominator zero this expression would be undefined. so set
:

:
3x-3=0 and 2x-1=0
:
3x=3 and 2x=1
:
x=1 and x=1/2......so x cannot be these values or expression would be undefined
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