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CPM Unit 7 Key Quest

Rationals

QuestionAnswer
Simplify: 3x³/6x² x/2
How do you simplify: 3x³/6x² ? Factor out the 3. Put x to the 3-2 on the top.
What is the next step in simplifying (x²+5x+6) / (x²-9) Factor everything.
What is the next step? (x+3)(x+2) / (x+3)(x-3) Cancel the (x+3)
How do you multiply a problem like: 4/3 x 3/2 ? Factor out any GCF from the bottom and the top. Multiply across.
What is the difference between multiplying and dividing fractions? You have to flip the second fraction on division. THen they are the same.
Divide 4/3 by 8/3. 1/2
What is the first step in adding or subtracting fractions? Find the Least Common Multiple of the denominators.
Simplify: 2/3 + 2/3 4/3
What is the Least Common Denominator for 4/3x + 3/2 ? 6x
How do you add a problem like: 4/3x + 3/2 ? Find the least common denominator; change the fractions to that denominator by multiplying; add the numerators; and simplify.
How do you add a problem like: 2/3 + 2/3 ? Add the numerators; and simplify if needed.
How do you solve a rational equation like: 2 / 3x+1 = 3 / x+4 Cross multiply then solve for x.
What is the next step step in simplifying this problem: 1/(x+1)(x+2) + 2/(x+1) Multiply the top and the bottom of the second fraction by (x+2).
What is the next step in simplifying this problem: 1/(x+1)(x+2) + 2(x+2)/(x+1)(x+2) Add the numerators.
What is the next step in simplifying this problem: 1+2(x+2) / (x+1)(x+2) Distribute the two
What is the next step in simplifying this problem: (1+2x+4) / (x+1)(x+2) Combine like terms. The final answer is (2x+5) / (x+1)(x+2)
What is the first step in simplifying this problem: 1/(x²+ 3x+2) + 2/(x+1) Factor everything
How do you solve a rational equation like: (3 / x+1) + (x / x+1) = (5 / x+1) Eliminate the denominators and solve for x.
Created by: meminot
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