<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B26x%2B13%7D%20%3D%20x%2B7" id="TexFormula1" title=" \sqrt{26x+13} = x+7" alt=" \s

AysviL [449]

3 years ago

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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