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2x+3/x+1 - 6/x=2
<=>x(2x+3)/x(x+1) - 6(x+1)/x(x+1)=2x(x+1)/x(x+1)
<=>x(2x+3) - 6(x+1)=2x(x+1)
<=>2x^2+3x - 6x -6=2x^2 + 2x
<=>(2x^2 - 2x^2) + (3x - 6x - 2x)=6
<=>-5x =6
<=> x =-6/5
giúp cần gấp tối nay, xong trước 7h tối
1)Gpt: 2x3 + x + 3 =0
2)Gpt: x3 + x2 - x\(\sqrt{2}\) - 2\(\sqrt{2}=0\)
3)Gpt: 23 -9x + 2 = 0
4)Gpt: x3 - 42 + 7x - 6 = 0
5)Gpt: 2x3 + 7x2 + 7x + 2 = 0
GPT: 2x(x-1)-3(x^2-4x)+x(x+2)=-3
GPT: x(x+2)(x^2+2x+5)=6
Gpt này giúp e vs mọi người
(2x-7)2-6(2x-7)(x-3)=0
GPT: \(\frac{2}{x^2-3x+12}+\frac{6}{x^2+2x+12}=\frac{1}{x}\)
4)Gpt \(\left(2x^2-7x+6\right)\cdot\left(2x^2+x-2\right)=9\left(x-1\right)^2\)
GPT: (2x + 1)(x + 1)2(2x + 3) = 18
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
GPT:
(3x+4)^2-(3x-1).(3x+1)=49
(x+2).(x^2-2x+4)-x.(x+3).(x-3)