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Q: How do you factor an expression with subtraction?

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30 -5 =x

No.

what are the operations that separate terms in an expression

another rational expression.

to simplify the radicand

6 - 8 = -2 is one possible answer.

I need to; factor each expression 10x + 40 = ?

that we can use it

Nothing is a factor BY ITSELF; you can say that one expression is a factor OF ANOTHER EXPRESSION. IF you don't specify the other expression, the question is meaningless.

No, subtraction is not commutative. If you take the expression 9 - 4, you can't rearrange it because 9 - 4 does not equal 4 - 9.

a common factor

There is no factor of the expression in the question.

something that involves addition subtraction multiplication or division

Adding +k is the same as subtracting (-k).

Those are the "terms" of the expression.

it is the number you would use to solve the problem

You don't. You use the GCF to reduce the answer once the addition or subtraction is complete.

the common factor is 1.

64

An expression is a collection of terms which are separated by addition or subtraction symbols. Often it represents one side of an equation or a formula.

It is 5*f where f is an expression.

I have never heard of subtraction being used to find the GCF. Factors refer to multiplication.

An expression is in its lowest terms if the greatest common factor of the numerator and denominator is one.An expression is in its lowest terms if the greatest common factor of the numerator and denominator is one.An expression is in its lowest terms if the greatest common factor of the numerator and denominator is one.An expression is in its lowest terms if the greatest common factor of the numerator and denominator is one.

A factor is a number or quantity that when multipled with another produces a given number or expression.

If an expression does not have a common factor, then it is called a "prime" expression.