solve the quadratic equation: x^2-5x-2
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Answer:
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
Step-by-step explanation:
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