Quiz about primer intento

Question 1

$$\frac{a}{2}\ +\ \frac{3}{2b^2c}\ -\frac{2a}{c^2b^{5\ \ \ }}$$

Accepted Answer

$$\frac{b^5c^2a\ +3b^3c\ -\ 4a}{2b^5c^2}$$

Answer

$$\frac{a\ +\ 3\ -2a\ }{2bc}$$

Answer

$$\frac{b^5c^2a\ +6b^3c\ -\ 4a}{2bc}$$

Answer

$$\frac{3\ -\ a}{2bc}$$

Question 2

$$2x\ -\ 7\ =\ -5x$$

Accepted Answer

$$x=1$$

Answer

$$x=-1$$

Answer

$$x=7$$

Answer

$$x=0$$

Question 3

$$\frac{1}{5}x\ -3x=-2x$$

Accepted Answer

$$x=0$$

Answer

$$x=\frac{1}{5}$$

Answer

$$x=1$$

Answer

$$ otin\ solucíon$$

Question 4

$$\frac{x\ \left(2x-4\right)\left(x-3\right)}{x-2}=0$$

Accepted Answer

$$x=3\ \ y\ \ x=0$$

Answer

$$x=2\ \ y\ \ \ x=3\ \ \ y\ \ \ x=0$$

Answer

$$x=0$$

Answer

$$ otin solucion$$

Question 5

Reducir a una fraccion $$\frac{1}{x}\ -\frac{\ 2x+1}{3x}$$

Accepted Answer

$$\frac{-2x+2}{3x}$$

Answer

$$\frac{x+1}{3x}$$

Answer

$$\frac{-2x}{3}$$

Question 6

Escribir con intervalo o union de intervalos $$A=\left\{x\in R\ \left|\ x>\ 5\ y\ tambien\ x<-1\right|\right\}$$

Accepted Answer

$$\Phi$$

Answer

$$\left(-1\ ;\ 5\right)$$

Answer

$$\left(5;\infty\right)$$

Answer

$$\left(-\infty;\ -1\right)$$

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