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Frost
11 October, 13:51
X^2+2x-5=0 quadratic form
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Hugo West
11 October, 17:40
0
-1+√6
-1-√6
Step-by-step explanation:
x²+2x-5=0
x = (-2±√ (2²-4 (-5))) / 2 = (-2±√ (4+20)) / 2 = (-2±√24) / 2
x₁ = (-2+√24) / 2 or x₂ = (-2-√24) / 2
x₁ = (-2+2√6) / 2 or (-2-2√6) / 2
x₁=-1+√6 or x₂=-1-√6
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