Quiz 1

$$2x^2-5xy-3y^2$$

$$2x^2+xy-3y^2$$

$$x^2-5xy-y^2$$

$$x^2+xy-y^2$$

$$4a^2-9b^2-16c^2$$

$$4a^2-9b^2-16c^2+24bc$$

$$4a^2+9b^2+16c^2$$

$$4a^2+9b^2+16c^2-24bc$$

$$\left(w-y\right)\left(2x-3z\right)$$

$$\left(w+y\right)\left(2x+3z\right)$$

$$\left(w-y\right)\left(2x+3z\right)$$

$$\left(w+y\right)\left(2x-3z\right)$$

$$\frac{\left(2x^2-3x+9\right)}{\left(x^2+3x-10\right)}$$

$$\frac{\left(2x^2-6x-29\right)}{\left(x^2+3x-10\right)}$$

$$\frac{\left(2x^2+6x+29\right)}{\left(x^2+3x-10\right)}$$

$$\frac{\left(2x^2-6x+29\right)}{\left(x^2-3x+10\right)}$$

1 : 3

1 : 2

1 : 4

1 : 6

$$\frac{x+1}{x+4}$$

$$\frac{x-1}{x-4}$$

$$\frac{x+4}{x+1}$$

$$\frac{x-4}{x-1}$$

$$2\left(x+3\right)$$

$$\frac{1}{2}\left(x+3\right)$$

$$\frac{1}{4}\left(2x-3\right)$$

$$\frac{1}{2}\left(2x-3\right)$$

21

25

28

35

$$\left(x-7\right)\left(x-4\right)$$

$$\left(x-7\right)\left(x+4\right)$$

$$\left(x+7\right)\left(x-4\right)$$

$$\left(x+7\right)\left(x+4\right)$$

62

68

72

74