( 2 х + 3 ) ( х - 2 ) - 14 > = 0...

ninaarina76 @ninaarina76

July 2022 1 8 Report

( 2 х + 3 ) ( х - 2 ) - 14 > = 0

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ShirokovP

Verified answer

2x^2 - x - 20 ≥ 0

2x^2 - x - 20 = 0
D = 1 + 4*40 = 161
x1 = ( 1 + √161)/4
x2 = ( 1 - √161)/4

x ∈ ( - ∞; (1-√161)/4 ] ∪ [ (1+√161)/4 ; + ∞)

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