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2HellGirl2
@2HellGirl2
June 2021
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Помогите пожалуйста, очень срочно
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aselki04
4x^2-21x+5-x^2+25=0
3x^2-21x+30=0
d=441-360=81=9^2
x1=(21-9)/6=2
x2=(21+9)/6=5
x1,2=(2;5)
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Answers & Comments
3x^2-21x+30=0
d=441-360=81=9^2
x1=(21-9)/6=2
x2=(21+9)/6=5
x1,2=(2;5)