Question

${x}^{2} - 5x + 4x = 0$
Решить через дискрименант помогите
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Answer 1

4 {x}^{2} - 5x + 1 = 0 \\ d \: = 25 - 16 = 9 = {3}^{2} \\ x = (5 + - 3)\div 8 \\ x1 = 1 \\ \: \: x2 = 0.25[/tex]