помогите пожалуйста! решить с помощью ДИСКРИМИНАНТРА.

Д)7Х=4Х^2

Е)Х^2-6Х+5=0

Ж)5Х^2-3=0

З)2Х^2-Х+3=0

И)(Х+2)^2=43-6Х

К)(Х-3)(Х+3)=5Х-13

Л)(2Х^2+Х)/5=(4Х-2)/3
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