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vladimir2022 [97]
3 years ago
6

What is the whole number value of n?

Mathematics
1 answer:
allsm [11]3 years ago
4 0
13^2 + 2 * 13 * n + n^2 = 18^2
169 + 26n + n^2 = 324
26n + n^2 = 324 - 169
26n + n^2 = 155
n^2 + 26n - 155 = 0
(n - 5)(n + 31) = 0

n - 5 = 0
n = 5

n + 31 = 0
n = -31.....not this one because it is negative

so n = 5 <===
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Answer:

Step-by-step explanation:

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(1)

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Let's plug in both results.

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