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* 8b2 - 7 = 193 8b2 = 193 + 7 b2 = 200 / 8 b = √25 b = 5 * 7n2 = 448 n2 = 448 / 7 n = √64 n = 8.

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Jenia2lajaninl
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* 8b2 - 7 = 193

8b2 = 193 + 7

b2 = 200 / 8

b = √25

b = 5 * 7n2 = 448

n2 = 448 / 7

n = √64

n = 8.