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3 years ago

How do you solve 8n squared+4n-16= -n squared using the quadratic formula?

1 answer:

3 0

8n² + 4n - 16 = -n²
8n² + n² + 4n - 16 = -n² + n²
9n² + 4n - 16 = 0
n = -4 +/- √(4² - 4(9)(-16))
 2(9)
n = -4 +/- √(16 + 576)
 18
n = -4 +/- √(592)
 18
n = -4 +/- 24.33
 18
n = -4 + 24.33 n = -4 - 24.33
 18 18
n = 20.33 n = -28.33
 18 18
n = 1.1294 n = -1.57389

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3 years ago

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Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

this creates 2 similar triangles.

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