SOLUTION: Determine the value/s of the variable where the expression is undefined : -16 / j-3 Solve by factoring : x^2+3x+2 Factor Completely: 3x^3-3x^2-6x

Question 54759: Determine the value/s of the variable where the expression is undefined :
-16 / j-3
Solve by factoring : x^2+3x+2
Factor Completely: 3x^3-3x^2-6x
Answer by funmath(2933) (Show Source): You can put this solution on YOUR website!
Determine the value/s of the variable where the expression is undefined :

Fractions are undefined when their denominators=0.
j-3=0
j-3+3=0+3
j=3 Makes the rational expression undefined.
:
Solve by factoring : x^2+3x+2
This is in form:
a=1, b=3, c=2
We need two numbers that multiply together to give you c, but add together to give you b.
x*x=x^2
(x___)(x___)
1*2=2(c) and 1+2=3(b)
(x+1)(x+2)
:
Factor Completely: 3x^3-3x^2-6x
First factor out the GCF (greatest common factor)

a=1, b=-1, c=-2

1*-2=-2(c) and 1+(-2)=-1 (b)

Happy Calculating!!!
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