Solve the quadratic equation x2 + 5x + 2 = 0 and give the answer correct to

2 decimal places​

1 thought on “Solve the quadratic equation x2 + 5x + 2 = 0 and give the answer correct to <br /><br />2 decimal places​”

1. Answer:

   x = -0.438 OR x = -4.562

   Step-by-step explanation:

   x² + 5x + 2=0

   This is a quadratic equation of the type ax² + bx + c=0 with a=1, b=5 and c=2

   ∴ x = [-b±√(b²-4ac)]/2a

   = [-5±√(5²-4×1×2)]/2×1

   = [-5±√(25-8)]/2

   = (-5±√17)/2

   x = (-5+√17)/2 OR x = (-5–√17)/2

   x = -0.438 OR x = -4.562

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