klmc2468
klmc2468
29-04-2015
Mathematics
contestada
[tex] x^{2} +18x+79=0[/tex]
Respuesta :
Panoyin
Panoyin
29-04-2015
x² + 18x + 79 = 0
x =
-(18) +/- √((18)² - 4(1)(79))
2(1)
x =
-18 +/- √(324 - 316)
2
x =
-18 +/- √(8)
2
x =
-18 +/- 2√(2)
2
x = -9
+
√(2)
x = -9 + √(2) x = -9 - √(2)
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