Seudónimo Seudónimo
  • 01-04-2015
  • Mathematics
contestada

2x squared plus negative 5 - 10 equals zero

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Panoyin
Panoyin Panoyin
  • 01-04-2015
2x² + (-5) - 10 = =
2x² - 5 - 10 = 0
2x² - 15 = 0
     + 15 + 15
       2x² = 15
         2      2
         x² = 7.5
          x ≈ 2.74
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Аноним Аноним
  • 01-04-2015
X² will be 7.5 i think the person who answered it below did a very good job congratulation 
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