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aksik [14]
3 years ago
7

Prove the polynomial identity.

Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
7 0

Explanation:

Since we have given that

(2x+1)^2-2(2x+1)

Now, we have to prove it as

(2x+1)(2x-1)

Now, start the iterations:

(2x+1)^2-2(2x+1)\\\\=4x^2+1+4x-4x-2\\\\=4x^2+1-2\\\\=4x^2-1\\\\=(2x)^2-1\\\\=(2x+1)(2x-1)

So, first blank will be filled with

4x^2+4x+1

Second blank will be filled with

4x^2-1

Hence proved.

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Answer:

  A  Alternate interior angles of parallel lines are congruent

Step-by-step explanation:

The referenced angles (1, A), (3, C) are alternate interior angles, not corresponding or exterior. The symmetric property does not apply. The only answer choice with any applicability is the one shown above. (It is also the right choice.)

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3 years ago
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Answer:

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Step-by-step explanation:

Use cosine:

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\dfrac{73}{y}=0.9563             <em>convert the decimal to the fraction</em>

\dfrac{73}{y}=\dfrac{9563}{10000}          <em>cross multiply</em>

9563y=730000           <em>divide both sides by 9563</em>

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3 years ago
Please help me! ASAP explain for brainlist.
LekaFEV [45]

Step-by-step explanation:

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2 years ago
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Below.

Step-by-step explanation:

2 + 3 + 4 = 9 so

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