Х+18 4х-3
------- - ------------- =7 /*12
4 3
3*(х+18)-4*(4х-3)=84
3х+54-16х+12=84
3х-16х=84-54-12
-13х=18
х=18:(-13)
х= -18/13
х= -1 5/13
<span>А)3-2а+5а-11 = 3a - 8</span>
Ответ:
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Объяснение:
3x^2=2x+x^3
3x^2-2x-x^3=0
x*(3x-2x-x^2)=0
x*(-x^2+3x-2)=0
x*(-x^2+2x+x-2)=0
x*(-x*(x-2)+x-2)=0
x*(x-2)*(-x+1)=0
x=0 x-2=0 -x+1=0
x=2 x-1=0
x=1