2x squared plus negative 5 - 10 equals zero

asked Apr 11, 2016 95.7k views

2 votes

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4 votes

X² will be 7.5 i think the person who answered it below did a very good job congratulation

TheParam answered Apr 12, 2016

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3 votes

2x² + (-5) - 10 = =
2x² - 5 - 10 = 0
2x² - 15 = 0
+ 15 + 15
2x² = 15
2 2
x² = 7.5
x ≈ 2.74

Madsthaks answered Apr 17, 2016

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