Respuesta:
a) x = 2/5 b) x₁ = 2 x₂ = -2
Explicación paso a paso:
[tex]a) \frac{3x}{4x-1} =2[/tex] b) [tex]\frac{2x}{x+1} +\frac{2x}{x+4} =2[/tex]
3x = 2(4x-1) 2x(x+4) + 2x(x+1) = 2(x+1)(x+4)
3x = 8x - 2 2x² + 8x +2x²+2x = 2(x²+4x+x+4)
3x - 8x = -2 2x²+2x²+8x+2x = 2(x²+5x+4)
-5x = -2 4x²+10x = 2x²+10x+8
x = -2/-5 4x²-2x²+10x-10x=8
x = 2/5 2x² = 8
x² = 8/2
x² = 4
x = √4
x₁ = 2 x₂ = -2
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Verified answer
Respuesta:
a) x = 2/5 b) x₁ = 2 x₂ = -2
Explicación paso a paso:
[tex]a) \frac{3x}{4x-1} =2[/tex] b) [tex]\frac{2x}{x+1} +\frac{2x}{x+4} =2[/tex]
3x = 2(4x-1) 2x(x+4) + 2x(x+1) = 2(x+1)(x+4)
3x = 8x - 2 2x² + 8x +2x²+2x = 2(x²+4x+x+4)
3x - 8x = -2 2x²+2x²+8x+2x = 2(x²+5x+4)
-5x = -2 4x²+10x = 2x²+10x+8
x = -2/-5 4x²-2x²+10x-10x=8
x = 2/5 2x² = 8
x² = 8/2
x² = 4
x = √4
x₁ = 2 x₂ = -2