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√(x-1) +√(x+2) = √(2x-3) x=?
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Apr 6, 2022
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x=?
Mathematics
high-school
DPM
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2
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Answer:
Explanation:
attached
MaddTheSane
answered
Apr 8, 2022
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MaddTheSane
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Answer:
x = 2
Explanation:
See the steps:
x - 1 + x + 2 + 2
= 2x - 3
2x + 1 + 2
= 2x - 3
2
= -4
= -2
x² + x - 2 = 4
x² + x - 6 = 0
x = (-1 ±
)/2
x = (-1 ± 5)/2
x = -3, discounted as it leads to negative root
x = 2
Elias Soares
answered
Apr 10, 2022
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Elias Soares
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