Algebra II : Polynomials

Study concepts, example questions & explanations for Algebra II

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例子Questions

例子Question #31 :Simplifying Polynomials

Simplify the polynomial. Assume that no variable equals zero.

Possible Answers:

Correct answer:

Explanation:

It is important to remember that ;

例子Question #32 :Simplifying Polynomials

Simplify:

Possible Answers:

Correct answer:

Explanation:

To simplify this expression, first identify what all the terms have in common. In this case, it's 2x. Now, factor that out from each of the terms to get your answer:.

例子Question #33 :Simplifying Polynomials

Simplify:

Possible Answers:

Correct answer:

Explanation:

To simplify, first use the distributive property:. Then, combine like terms to get your answer:.

例子Question #34 :Simplifying Polynomials

Put the following polynomial into standard form:

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Correct answer:

Explanation:

例子Question #35 :Simplifying Polynomials

Write the polynomial in standard form that has zeroes at 3, and.

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Correct answer:

Explanation:

From the zeroes we know:

First use FOIL method to simplify terms containing irrational numbers:

Which simplifies to:

FOIL again:

例子Question #36 :Simplifying Polynomials

Simplify.

Possible Answers:

Correct answer:

Explanation:

We can start by factoring aout of the numerator and denominator and cancel them:

Then we can factor the quadratic that's left in the denominator and cancel the one of the terms with the term in the numerator:

例子Question #37 :Simplifying Polynomials

Ifand, simplify.

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Correct answer:

Explanation:

We should start by writing everything out so we can have a good look at it:

To factor the numerator, let's group the first two and the last two terms:

We can factor out afrom the first group in the numerator, and afrom the second group:

Now we can factor out thefrom both terms in the numerator:

We can then cancel thefrom the numerator and the denominator, leaving us with a final answer of:

例子Question #38 :Simplifying Polynomials

Simplify the polynomial:

Possible Answers:

Correct answer:

Explanation:

To simplify the polynomial expression, we can simplify each term individually. To start, the first term has a difference of squares in the numerator, which can be rewritten as

using the formula

We can now simplify the first term completely to.

The second term can now be simplified:

Note that one could also simplify the denominator by itself by finding the least common denominator, and then simplify the entire term.

Now that all the terms are simplified, our final answer is

例子Question #39 :Simplifying Polynomials

Simplify:

Possible Answers:

Correct answer:

Explanation:

To simplify this expression, identify what goes into every one of the terms.

In this case, it's -7.

Then, take that out from each of the terms, remembering to pay attention to the signs.

Therefore, your answer is:

.

例子Question #40 :Simplifying Polynomials

Simplify:

Possible Answers:

Correct answer:

Explanation:

First, distribute the -1 at the front of the second expression:

.

Then, combine like terms to get your answer of

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