a 4x+3=3x-7 b 12-3x=-3x+8 c 11x+42-2X=100-9X-22 d 2x-(3-5x)=4(x+3) e x(x+2)=x(x+3) f 2(x-3)++5x(x-1)=5x2 câu2 (2x+1)(3-x)(4-2x)=0 b 2x(x-3)+5(x-3)=0 c (x2-4)-(3-2x)(x-2)=0 câu3 d (2x+5)2=(x+2)2 e x2-5x+6=0 f 2x3+5x2+3x=0 câu4 /x-2/=3 b /3x/=x=+7 c /-4x/=-2x+11 d /x+1/=/2x+3/ câu5 a(x-1)(x+1)(x+2)x=24 b(x+3)4+(x+5)4=16
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Sinh Học lớp 12
