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ruslelena [56]
2 years ago
7

Which equation has the solutions x = 1+ V5?

Mathematics
1 answer:
irina1246 [14]2 years ago
3 0

Answer:

x^2-2x-4=0

Δ=2^2-4*1*(-4)

Δ=4+16=20

VΔ=2V5

x1= (2+2V5)/2=1+V5

the answer is D

Step-by-step explanation:

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