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AysviL [449]
3 years ago
7

qrt{26x+13} = x+7" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
salantis [7]3 years ago
5 0
√26+13 ² = (x+7)²
26x + 13 = X² +14X + 49
26X +13 - X² -14X - 49 = 0
12X - X² - 36 = 0
-(X²-12X+36) = 0
-(X-6)² = 0 
(X-6)² = 0 
X-6 = 0
X= 6





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