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Q: What do you need to be careful of when subtracting rational expressions?

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These can be found through your textbook. You can look through the specific chapter to find the information that you need.

Expressions are just expressions. Art is an expression and no one can "solve" art. You need problems to solve. In algebra, you'll most likely be looking for equations to solve. Generally you are looking for a simple way to express a variable or to equate the variable to a number. This can be done using what are called "algebraic manipulations". Usually this involves just adding, subtracting, multiplying or dividing each side of an equation (an expression need not have "sides"), however there are many, many different operations than these. wow does that suck....the answer is Elmo

Multiplying Rational Expressions After studying this lesson, you will be able to: * Multiply rational expressions. Steps to multiply a rational expression: 1. Cancel numerator to denominator if possible (don't cancel parts of a binomial or trinomial) 2. Factor the numerators and denominators if possible. 3. Multiply straight across - remember, you don't need a common denominator to multiply fractions (or rational expressions). Example 1 Nothing will cancel. Nothing will factor. All we have to do is multiply. This is the simplified answer. Example 2 We can do some canceling and reducing in this problem. 2 and 16 reduces; 9 and 3 reduces, reduce the variables. Now, we multiply. This is the simplified expression. Example 3 We can reduce 12 and 3 and reduce the variables Now, factor the second denominator. Cancel the identical binomials (x + 5 ) This is the simplified expression. Example 4 Factor Cancel the identical binomials. This is the simplified expression. Example 5Factor Cancel the identical binomials. This is the simplified expression. THIS WAS MADE BY: www.algebra-online.com/multiplying-rational-expressions-1.htm Hope this helped !

It is a rational number because if need be it can be expressed as a fraction

It is a rational number because if need be it can be expressed as a fraction.

Related questions

Factor :D

factor

These can be found through your textbook. You can look through the specific chapter to find the information that you need.

If the rational expressions have large exponent, then you need to factor out this way: (a + b)ⁿ = (a + b)(a + b)...(a + b) [So there are n "(a + b)" factors.] Here are the examples... (a + b)³ = (a + b)(a + b)(a + b) (a + b)4 = (a + b)(a + b)(a + b)(a + b)

So that unlike fractions can be converted to like fractions, eg: 1/2 and 1/3 are equvalent to 3/6 and 2/6, 6 being the LCD of 2 and 3. You can now add them (giving 5/6) or subtract the lesser (giving 1/6)

only when adding and subtracting

Yes.

You need to find the common denominator in order to add or subtract them. You can only add or subtract "like things" and by finding a common denominator you make both rational expressions into things that can be added or subtracted.

As long as A and B are integers, A/B is rational.

Yes

Yes.

Expressions are just expressions. Art is an expression and no one can "solve" art. You need problems to solve. In algebra, you'll most likely be looking for equations to solve. Generally you are looking for a simple way to express a variable or to equate the variable to a number. This can be done using what are called "algebraic manipulations". Usually this involves just adding, subtracting, multiplying or dividing each side of an equation (an expression need not have "sides"), however there are many, many different operations than these. wow does that suck....the answer is Elmo

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