помогите решить уравнение: 1)х(х-4)+х-4=0 2)t(t+7)-4t-28=0. Created by klimenkol21. algebra-ru

помогите решить уравнение: 1)х(х-4)+х-4=0 2)t(t+7)-4t-28=0...

July 2022 1 3 Report

помогите решить уравнение:
1)х(х-4)+х-4=0
2)t(t+7)-4t-28=0

Answers & Comments

ekoponeva 1)х2-4х+х-4=0.Х^2-3х-4=0.D=(-3)^2-4*1*(-4)=9+16=25.X1,2=3+-√25:2.X1=3+5:2=8:2=4.X2=3-5:2=-2:2=-1.2)t^2+7t-4t-28=0.t^2+3t-28=0.D=(3)^2-4*1*(-28)=9+112=121.X1,2=-3+-11:2.X1=-3+11:2=8:2=4.X2=-3-11:2=-14:2=-7

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klimenkol21 August 2022 | 0 Ответы

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klimenkol21 August 2022 | 0 Ответы

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klimenkol21 August 2022 | 0 Ответы

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klimenkol21 August 2022 | 0 Ответы

osnovaniya trapecii 6sm i 9sm vysota 10sm najti rasstoyaniya ot tochki peresecheniyadea6b551016c04c8383f618917441f22 11246

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osnovaniya trapecii 6sm i 9sm vysota 10sm najti rasstoyaniya ot tochki peresecheniya0c50ad104f6e89a3291d70d1402d398b 22936

osnovaniya trapecii 6sm i 9sm vysota 10sm najti rasstoyaniya ot tochki peresecheniyadea6b551016c04c8383f618917441f22 11246

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