НВО 7 КЛАС МАТЕМАТИКА

-2,5

-1,5

1,5

2,5

$$\left(-\infty;0\right)$$

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

$$\left(0;+\infty\right)$$

$$\left(-3;+\infty\right)$$

$$20\degree$$

$$30\degree$$

$$40\degree$$

$$50\degree$$

$$2\left(х-1\right)\left(х+1\right)$$

$$2\left(х-1\right)\left(х^2+х+1\right)$$

$$2\left(х-1\right)\left(х^2-х+1\right)$$

$$\left(2х-2\right)\left(2х+2\right)$$

$$4+6х-6х^2$$

$$4-12х-6х^2$$

$$4-6х+9х^2$$

$$4-12х+9х^2$$

$$-\frac{3}{2};1$$

$$0;-\frac{3}{2};1$$

$$-1;\frac{3}{2}$$

$$-1;\frac{3}{2};5$$

$$-2\frac{1}{2}$$

$$-1\frac{1}{2}$$

$$1\frac{1}{2}$$

$$2\frac{1}{2}$$

$$\left(-3;2\right)$$

$$\left(-4;2\right)$$

$$\left(-3;-4\right)$$

$$\left(0;-4\right)$$

2

3

4

6

$$10\degree$$

$$15\degree$$

$$20\degree$$

$$25\degree$$