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Law Incorporation [45]
3 years ago
12

2x squared plus negative 5 - 10 equals zero

Mathematics
2 answers:
Annette [7]3 years ago
8 0
2x² + (-5) - 10 = =
2x² - 5 - 10 = 0
2x² - 15 = 0
<u>     + 15 + 15</u>
       <u>2x²</u> = <u>15</u>
         2      2
         x² = 7.5
          x ≈ 2.74
Basile [38]3 years ago
7 0
X² will be 7.5 i think the person who answered it below did a very good job congratulation 
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Original length of steel stock was 2.1m = 210cm

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