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kupik [55]
3 years ago
9

The measure of one angle in a regular octagon is

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
4 0

Answer:45 degrees

Step-by-step explanation:

360/8 sides =45

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Step-by-step explanation:

So we have the expression:

x^4-5x^2+6

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First, let's make a substitution. Let's let u be equal to x². Therefore, our expression is now:

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This is a technique called quadratic u-substitution. Now, we can factor in this form.

We can use the numbers -3 and -2. So:

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For the first two terms, factor out a u.

For the last two terms, factor out a -3. So:

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And we're done!

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