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x^3-9x 3x^3-6x^2+3x (x-1)(x-2)-6 x^2-4xa+8ab-4b^2 (1-x^2)(1-
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相关问题
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(1) 3x^3-2x-1 (2)x^3+6x^2+11x+6 (3)x^4+2x^3-9x^2-2x+8 (4) (x
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①7x=6x﹢4②2x+3=11‐6x③3.4x‐9.8=1.4x﹢9④4x‐3﹢3x=6x‐2
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(1)5+2x=1 (2)8-x=3x+2 (3)10x-3=9 (4)6x-7=4x-5 (5)1/2x-6=3/4x
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9x+6x²-3(x-2/3x²)其中x=-1 (2)1/2(2x-6x-4)-4(-1+x+1/4
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2(x-1)+3(4x-1)=9(x-1)+12 15(x-8)-4(2x+3)=6(6-x)-100 4(2x-1)-
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6(x+1)=4(x+4) 6(x-1)=4(3-2x) 5-3x=8-4x 5-(x+3)=4-3x 1/2(x+6)
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(1)2x=1/4 (2)1/3x-1/6x=6 (3)x-1/4x=3:8
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x1+x3+x4=7 x2+x3+x4=6 x2+x1+x4=8 x2+x1+x3=9 求x1 x2 x3 x4 是多少
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(1)9x=[3/8](2)x÷[5/6]=[4/5](3)[2/3]x-[1/6]x=[1/2](4)[3/4]÷x×
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[3/4][[8/3]x-2(x-1)3]=[2/3](6x-9)