What is 2x divided by x

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What is x2 divided by x? Study Guides. Trending Questions. Step by step guides that helps you complete a task is called? Still have questions? Find more answers. Previously Viewed. Unanswered Questions. Which of the following is released from the host cell in response to the presence of lipid A?

If something is multiplied on the x , we can undo it by dividing both sides of the equation that is, by dividing each term on either side side of the "equals" sign by whatever is multiplied on the x. The process looks like this:. Solving One-Step Equations. The variable is the letter on the left-hand side LHS of the equation.

The variable is multiplied by two. I want the x to stand alone on one side of the equation. Since the x is multiplied by 2 , I need to divide on both sides by 2 , in order to get the variable by itself.

This is called "dividing through by 2 ", and it looks like this:. Note: The fractional form, as displayed above, is the preferred form for answers. Unless you're told to use the decimal form, or unless the equation started out with numbers having decimal places rather than numbers which are integers or fractions , you should expect to need to use the fractional forms for your answers.

Yes, plugging things into your calculator and copying down the decimal approximation or decimal equivalent can indeed get your answer counted as "wrong", at least in part.

If in doubt, check with your instructor before the next test. The "undo" of division is multiplication. So, if the variable is divided by something, the one-step solution is to multiply through by that something that is, to multiply both sides of the equation by the denominator of the fraction that's with the variable ; that is, you'll want to multiply through in order to "clear" the denominator s and solve the equation.

The variable is on the left-hand side. It's not by itself; it's divided by five. Since the x is divided by 5 , I'll want to multiply both sides by 5. This gives me:. The above solution is animated on the "live" page.

But why did I do it? I did it because it is often easier to keep track of what I'm doing, when working with fractions, if all the numbers involved in a given computation are in fractional form. Most students find this habit to be helpful, so try to cultivate it now.

Remember what we discussed earlier: The solution to an equation is the value that makes the equation "true". This fact allows us to check our solutions. All we have to do is plug those solution values back into the original equations, and confirm that we end up with true statements. Or, if we don't, we know it's time to check our work! To verify that this solution value is correct, I can plug the numerical value back in to the original equation, in place of the variable, and see if it works:.

I'll then simplify, and make sure that the value on the left-hand side LHS of the equation is the same as the value on the right-hand side RHS of the equation. When you have an exercise where you're told to check a solution or to "verify" it, or whatever , the "answer" to such an exercise is to show the checking, like I did above.

If you plug in the solution value, and you end up with a true statement, then the solution "checks". Then I'll do the division in the usual manner. Then I multiply through, and so forth, leading to a new bottom line:.

Then I multiply through, etc, etc:. Dividing —7 x 2 by x 2 , I get —7 , which I put on top. The quadratic can't divide into the linear polynomial, so I've gone as far as I can. To succeed with polyomial long division, you need to write neatly, remember to change your signs when you're subtracting, and work carefully, keeping your columns lined up properly. If you do this, then these exercises should not be very hard; annoying, maybe, but not hard. You can use the Mathway widget below to practice finding doing long polynomial division.

Try the entered exercise, or type in your own exercise. Please accept "preferences" cookies in order to enable this widget. Click "Tap to view steps" to be taken directly to the Mathway site for a paid upgrade. Page 1 Page 2 Page 3. All right reserved. Web Design by. Skip to main content. Purplemath Unlike the examples on the previous page, nearly all polynomial divisions do not "come out even"; usually, you'll end up with a remainder.

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