4 years ago

Which of the following must be true for an expression to be a difference of

Mathematics

1 answer:

icang [17]4 years ago

4 0

Answer:

Step-by-step explanation:

A difference of squares is represented in general as

a² - b²

Both variables have an even power (2) → a

There are only two terms → b

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3 years ago

Read 2 more answers

What type of graph represents the sequence given by the explicit formula an = 5 + (n-1)2?

Tatiana [17]

5 + (n - 1)²
5 + (n - 1)(n - 1)
5 + (n² - n - n + 1)
5 + (n² - 2n + 1)
n² - 2n + 1 + 5
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n = -(-2) +/- √((-2)² - 4(1)(6))
 2(1)
n = 2 +/- √(4 - 24)
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n = 2 +/- √(-20)
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n = 1 + i√(5)
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The answer is equal to B.

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3 years ago