Question 1 Which is an example of a rational expression? A. ½ B. 5 C. D. None of the above.

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Question 1 Which is an example of a rational expression? A. ½ B. 5 C. D. None of the above

Incorrect Think about what a rational expression needs to have in it. Try again!

Incorrect

Correct! Next Question!

Incorrect Try again, there is one listed. Try again!

Question 2 When simplifying rational expressions, we can only can out _____________________. A. Factors B. Terms C. Variables D. Coefficients

Correct! Move on to the next question

Incorrect Terms are separated by addition and subtraction. Remember that division can only undo multiplication. Try again. Try again

Incorrect We may be able to cancel out variables if they are written using multiplication. Try again

Incorrect We can try to simplify or reduce coefficients, as long as they are written with multiplication. Try again

Question 3 Simplify the expression A. B. C. Cannot be simplified D.

Incorrect Check where the 2x was located before you cancelled anything. Try again

Incorrect Remember to cancel out any variables that you can Try again

Incorrect There is a way to reduce the coefficients and cancel out some variables Try again

Correct Next question please!

Question 4 Simplify the expression A. B. C. D. Cannot be simplified

Incorrect Check again. You can only cancel out factors (things attached with multiplication). Is the x in the top a factor? Try again

Incorrect Check again. You can only cancel out factors (things attached with multiplication). Is the x in the top a factor? Try again

Incorrect Where did the x on bottom go? Try again

Correct! Try the next question!

Question 5 Simplify the expression A. B. C. D.

Incorrect Check the way that you factored the bottom Try again!

Correct Good work! Next question!

Incorrect Check the number of factors that you can cancel in this problem. Try again!

Incorrect Did you forget to factor? Try again!

Question 6 Simplify the expression A. B. C. D.

Incorrect Did you use the kick out method? Remember that this doesn’t work if you have a GCF… Try again

Incorrect You’re missing some factors… Did you have any GCFs? Try again

Correct Now let’s try some multiplication!

Incorrect Did everything else cancel? Try again

Question 7 Simplify the expression A. B. C. D.

Incorrect You forgot to simplify Try again

Incorrect Check to see if you had the same number of x’s in the top and bottom. If not, they won’t all cancel out Try again

Correct! Now let’s try division!

Incorrect You can simplify like this if you’d like. However, you still need to do the multiplication Try again

Question 8 Simplify the expression A. B. C. D.

Incorrect You multiplied straight across. This is a division problem so you can’t multiply right away. Try again

Correct! Nice job! Next question. Nice job! Next question

Incorrect You are right so far… now you need to simplify. Try again

Incorrect You multiplied the top and bottom by 7x. Try again

Question 9 Simplify the expression A. B. C. D. I need a hint!

Correct Muy bien!

Incorrect You need to factor the top and bottom and simplify Try again

Incorrect Can you factor anything else and simplify even more? Try again

Here’s a hint… Factor each part first. Now multiply across (don’t distribute) and cancel out common factors. Try again

Question 10 Simplify the expression A. B. C. D.

Incorrect You tried to multiply the bottom, you need to keep it factored and cancel out common factors. Try again

Incorrect Don’t forget to simplify! Try again

Incorrect Can you cancel out the x’s here? Try again

Correct WOO! Next question!

Question 11 Simplify the expression A. B. C. D.

Incorrect Check your denominator Try again

Correct Good work! Only a few more questions!

Incorrect You’re on the right track. Keep simplifying Try again

Incorrect You can only cross multiply across an equal sign. Try again

Question 12 Simplify the expression A. B. C. D.

Incorrect You can’t add straight across Try again

Incorrect You forgot to multiply the numerators when you were getting a common denominator Try again

Incorrect Don’t forget to simplify Try again

Correct Try the next question

Question 13 Simplify the expression A. B. C. D.

Incorrect You got a common denominator by adding to the top and bottom. This will change the fraction. Try multiplying by something Try again!

Incorrect You are half way there. Keep going! Try again!

Incorrect You cancelled out more than you should have. Try again!

Correct Only one more question!

Question 14 Simplify the expression A. B. C. D.

Correct! Awesome! Turn your paper in!

Incorrect You FOILed incorrectly Try again!

Incorrect You can’t cancel out until you have written the numerator in factored form. Try again!

Incorrect You made two mistakes. First, you subtracted the numerators before you had a common denominator. Secondly, you multiplied the denominator incorrectly. Try again!