###### Asked in Algebra

Algebra

# What values of x make the expression 5-xx(x-2) undefined?

## Answer

###### Wiki User

###### June 27, 2017 2:05AM

Which of these values of x make the expression undefined? 5-x/x(x-2)

## Related Questions

###### Asked in Algebra

### What is a rational algebraic expression?

A rational number is any number that can be written in
the form a/b, where a and b are integers and b ≠ 0. it is necessary
to exclude 0 because the fraction represents a ÷ b, and division by
zero is undefined.
A rational expression is an expression that can be
written in the form P/Q where P and Q are polynomials and the value
of Q is not zero.
Some examples of rational expressions:
-5/3; (x^2 + 1)/2; 7/(y -1); (ab)/c; [(a^2)(b]/c^2; (z^2 + 3z +
2)/ (z + 1) ect.
Like a rational number, a rational expression represents a
division, and so the denominator cannot be 0. A rational expression
is undefined for any value of the variable that makes the
denominator equal to 0. So we say that the domain for a
rational expression is all real numbers except those that make the
denominator equal to 0.
Examples:
1) x/2
Since the denominator is 2, which is a constant, the expression
is defined for all real number values of x.
2) 2/x
Since the denominator x is a variable, the expression is
undefined when x = 0
3) 2/(x - 1)
x - 1 ≠ 0
x ≠ 1
The domain is {x| x ≠ 1}. Or you can say:
The expression is undefined when x = 1.
4) 2/(x^2 + 1)
Since the denominator never will equal to 0, the domain is all
real number values of x.

###### Asked in Algebra

### Definition of rational algebraic expression?

A rational number is any number that can be written in
the form a/b, where a and b are integers and b ≠ 0. it is necessary
to exclude 0 because the fraction represents a ÷ b, and division by
zero is undefined.
A rational expression is an expression that can be
written in the form P/Q where P and Q are polynomials and the value
of Q is not zero.
Some examples of rational expressions:
-5/3; (x^2 + 1)/2; 7/(y -1); (ab)/c; [(a^2)(b]/c^2; (z^2 + 3z +
2)/ (z + 1) ect.
Like a rational number, a rational expression represents a
division, and so the denominator cannot be 0. A rational expression
is undefined for any value of the variable that makes the
denominator equal to 0. So we say that the domain for a
rational expression is all real numbers except those that make the
denominator equal to 0.
Examples:
1) x/2
Since the denominator is 2, which is a constant, the expression
is defined for all real number values of x.
2) 2/x
Since the denominator x is a variable, the expression is
undefined when x = 0
3) 2/(x - 1)
x - 1 ≠ 0
x ≠ 1
The domain is {x| x ≠ 1}. Or you can say:
The expression is undefined when x = 1.
4) 2/(x^2 + 1)
Since the denominator never will equal to 0, the domain is all
real number values of x.

###### Asked in Math and Arithmetic, Algebra, Geometry, Linear Algebra

### Do you solve an expression the same way you solve an equation?

If we are talking about the algebraic expressions, then an
expression can be simplified or be evaluated for specific values of
its variables, while an equation need to be solved, in other words
to find the values of the variables that make the equation a true
statement.
If we are solving an equation, then we can work in the same way
that we can simplify an expression (since an equation is a
statement that states that two expressions are equal), or factoring
an expression.

###### Asked in Math and Arithmetic

### What is zero times undefined?

logically, if any number divided by 0 is undefined, than
according to reverse
operation, undefined times zero should be any number which would
make it
undefined. 0/1 x 1/0 = 0/0 which is undefined
Also, "undefined" means it's undefined. If one of the factors is
not defined,
then you can't very well expect the product to be defined; now
can you !

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