(x-2)/5-(x+3)/10-(2x-5)/3+3=0去分母啊标注
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(x-2)/5-(x+3)/10-(2x-5)/3+3=0去分母啊标注(x-2)/5-(x+3)/10-(2x-5)/3+3=0去分母啊标注(x-2)/5-(x+3)/10-(2x-5)/3+3=0去
(x-2)/5-(x+3)/10-(2x-5)/3+3=0去分母啊标注
(x-2)/5-(x+3)/10-(2x-5)/3+3=0
去分母啊标注
(x-2)/5-(x+3)/10-(2x-5)/3+3=0去分母啊标注
两边乘30
6(x-2)-3(x+3)-10(2x-5)+90=0
6x-12-3x-9-20x+50+90=0
20x-6x+3x=50+90-12-9
17x=119
x=119÷17
x=7
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
解九宫格题目(X为未知数)9 X 2 X 7 X 8 X XX X 4 X X 9 X 6 X1 3 X 5 X X X X 24 X X 8 5 X X 1 XX 8 9 4 X 1 6 7 XX 1 X X 3 6 X X 88 X X X X 2 X 3 6X 5 X 6 X X 9 X XX X 7 X 4 X 2 X 1
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(x-3)(x+4)-2(x+5)(x-5),其中x-10先化简再求值
*-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X ||
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x(x平方-1)+2X平方(X+1)-3X(2X-5)帮个忙
化简(x+2)(x的平方-6x-9)-(x-5)(x-3)x
填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x
为什么3X-2(-X?(X-1)+5)=-3X +2 X? (X-1)-10
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x+5/x+1-3x-3/x+5=8x+28/x^2+4X-5-2(x+5)/(x+1)-(3x-3)/(x+5)=(8x+28)/(x^2+4X-5)-2
1.(1/X-1 )-2=X^-3X/X^-12.(X/X+1)^+5(X/X+1)+6=03.(8(X^+2X)/X^-1)+ 3(X^-1)/X^+2x
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