Toán Lớp 8: (2x-1)(3-x)+(x-2)(x+3)=(1-x)(x-2)
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Lm giúp mình vs
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Toán Lớp 8: (2x-1)(3-x)+(x-2)(x+3)=(1-x)(x-2)
Tìm x:
Lm giúp mình vs
Comments ( 2 )
<=>6x-2x^2-3+x+x^2+3x-2x-6=x-2-x^2+2x
<=>-x^2+8x-9=-x^2+3x-2
<=>-x^2+x^2+8x-3x=9-2
<=>5x=7
<=>x=7/5
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