4x squared + 7x +2=0 use quadratic formula

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01-04-2015
Mathematics

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4x squared + 7x +2=0 use quadratic formula

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Panoyin Panoyin · Answer 1 · 2015-04-01T19:35:34-04:00

4x² + 7x + 2 = 0
x = -7 +/- √(7² - 4(4)(2))
      2(4)
x = -7 +/- √(49 - 32)
   8
x = -7 +/- √(17)
   8
x = -7 +/- 4.123
8
x = -7 + 4.123 x = -7 - 4.123
      8     8
x = -2.877 x = -11.123
   8 8
x = -0.359625 x = -1.390375