10(x-2)+x=3x(x-2)怎么算?

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10(x-2)+x=3x(x-2)怎么算?10(x-2)+x=3x(x-2)怎么算?10(x-2)+x=3x(x-2)怎么算?展开:10x-20+x=3x^2-6x合并同类项:3x^2-17x+20=

10(x-2)+x=3x(x-2)怎么算?
10(x-2)+x=3x(x-2)怎么算?

10(x-2)+x=3x(x-2)怎么算?
展开:10x-20+x=3x^2-6x
合并同类项:
3x^2-17x+20=0
(x-4)(3x-5)=0
x1 = 4;x2= 5/3

10x-20+x=3x^2-6x
3x^2-17x+20=0
(3x-5)(x-4)=0
解得:x=5/3或4