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14 tháng 3 2022 lúc 10:06
1) (3x-2)/3-2=(4x+1)/42) (x-3)/4+(2x-1)/3=(2-x)/63) 1/2 (x+1)+1/4 (x+3)=3-1/3 (x+2)4) (x+4)/5-x+4=x/3-(x-2)/25) (4-5x)/6=2(-x+1)/2 6) (-(x-3))/2-2=5(x+2)/4 7)2(2x+1)/5-(6+x)/3=(5-4x)/158) (7-3x)/2-(5+x)/5=1 9)(x-1)/2+3(x+1)/8=(11-5x)/310)(3+5x)/5-3=(9x-3)/4
Giải phương trình
1) (3x-2)/3-2=(4x+1)/4
2) (x-3)/4+(2x-1)/3=(2-x)/6
3) 1/2 (x+1)+1/4 (x+3)=3-1/3 (x+2)
4) (x+4)/5-x+4=x/3-(x-2)/2
5) (4-5x)/6=2(-x+1)/2
6) (-(x-3))/2-2=5(x+2)/4
7)2(2x+1)/5-(6+x)/3=(5-4x)/15
8) (7-3x)/2-(5+x)/5=1
9)(x-1)/2+3(x+1)/8=(11-5x)/3
10)(3+5x)/5-3=(9x-3)/4
1.giải phương trình :
1)1 + 2/x-1 + 1/x+3=x^2+2x-7/x^2+2x-3
2)x/x^2+5x+6=2/x^2+3x+2 (x=3)
3)1/x^2+9x+20 - 1/x^2+8x+12=x^2-2x-33/x^2+8x+15 (x=-5,7)
4)x+5/3x-6 - 1/2=2x-3/2x-4 (x=25/7)
5)x-1/x^3+1 + 2x+3/x^2-x+1=2x+4/x+1 - 2(x=0)
1) 2x+6=0
2)(x^2-2x+1)-4=0
3)x-2/x+2+3/x-2=x^2-11/x^2-4
4)x(x^2-1)=0
5)4x+20=0
6)x+3/x+1+x-2/x=2
7)1+2x-5/6=3-x/4
8x+2/x-2-1/x=2/x^2-2x
9)2(x+1)=5x-7
Phân tích thành nhân tử
1) (x-1) (x+2) (x+3) (x-6) + 32x^2
2) (x+1) (x-4) ( x+2) ( x-8) +4x^2
3) ( x - 2) ( x-3) ( x-6) (x-4) - 75x^2
4) (x+3)(x-1)(x-5)(x+15)+64x^2
5) (x+2)(x-4)(x+6)(x-12)+36x^2
6) (x-2)(x-4)(x-5)(x-10)-54x^2
a,x+5/x-1+8/x^2-4x+3=x+1/x-3 b,x-4/x-1-x^2+3/1-x^2+5/x+1=0 c,3x/4-5=3-x/2+5x-1/6 d,(x-2)(x+2)-(x-3)(x+4)-2x+3=0 e,(x-1)^2+2(x+1)=5x+5 g,(x-3)(x+4)x=0
Bài 1: rút gọn a. ( x + 1)^2 - (x - 1)^2 - 3(x + 1)(x - 1)b. 5(x +2)(x -2) - 1/2(6 - 8x)^2 + 17c. (x^2 - 1)^3 - (x^4 + x^2 + 1)(x^2 - 1)d. (x^4 - 4x^2 +9)(x^2 + 3) - (3 + x^2)^3e. (x-3)^3 -(x - 3)(x^2 +3x + 9) + 6(x + 1)^2Bài 2: tìm xa. 25x^2 - 9 0b. (x + 4)^2 - (x + 1) (x -1) 16c. (2x - 1)^2 + (x + 3)^2 - 5(x + 7)(x - 7) 0d. (x + 2)(x^2 - 2x + 4) - x(x^2 + 2) 15e. (x + 3)^3 - x(3x + 1)^2 + (2x + 1)(4x^2 - 2x + 1) 28g. (x^2 - 1)^3 - (x^4 + x^2 + 1)(x^2 -1) 0HELP ME!!!!!!!!
Đọc tiếp
Bài 1: rút gọn
a. ( x + 1)^2 - (x - 1)^2 - 3(x + 1)(x - 1)
b. 5(x +2)(x -2) - 1/2(6 - 8x)^2 + 17
c. (x^2 - 1)^3 - (x^4 + x^2 + 1)(x^2 - 1)
d. (x^4 - 4x^2 +9)(x^2 + 3) - (3 + x^2)^3
e. (x-3)^3 -(x - 3)(x^2 +3x + 9) + 6(x + 1)^2
Bài 2: tìm x
a. 25x^2 - 9 = 0
b. (x + 4)^2 - (x + 1) (x -1) = 16
c. (2x - 1)^2 + (x + 3)^2 - 5(x + 7)(x - 7) = 0
d. (x + 2)(x^2 - 2x + 4) - x(x^2 + 2)= 15
e. (x + 3)^3 - x(3x + 1)^2 + (2x + 1)(4x^2 - 2x + 1) = 28
g. (x^2 - 1)^3 - (x^4 + x^2 + 1)(x^2 -1) = 0
HELP ME!!!!!!!!
GPT:
1)(x+1006/1000)+(x+1007/999)+(x+1008/998)+(x+1009/997)+(x+2022/4)=0
2)(x-999/99)+(x-896/101)+(x-769/103)=6
3)x4+x3+6x2=-5(x+1)
4)(x+1)(x+2)(X+3)(x+4)=24
5)(x+1)(x+2)(x+4)(x+5)=40
6)(x+1/x2+x+1)-(x-1/x2-x+1)=2(x+2)2/x6-1
7)2x4-7x3-2x2+13x+6/(x+1)(2x+1)=0
8)2x4-7x3-2x2+13x+6=0
tìm x
a,(x+1)^3-(x-1)^3-6(x-1)^2=-10
b,x(x+5)(x-5)-(x+2)(x^2-2x+4)=42
c,(x-2)^3-(x-3)(x^2+3x+9)+6(x+1)^2=49
A= [3/2-(x^4-x^4+1/x^2+1)*x^2-x(4*x-1)-4/x^7+6*x^4-x-6]/x^3+29*x+78/3*x^2+12*x-36.rut gon