Question

Va rog ajutati-ma îmi trebuie urgent,dau steluțe​

Answer 1

Răspuns:

1.

6x + 2 + 3 - 6x = 5

2.

3x^2 - 6x - 6 + 6x - 3x^2 = - 6

3.

x^2 + x + 1

4.

12x^2 : 3x^2 = 4

5.

x + x - x + x = 2x

6.

x^10 : x^10 × x = x

7.

x^2 - 4 + 4 = x^2

8.

x^2 - 9 - x^2 - 6x - 9 + 6x + 21 = 3

9.

x^2 + x - 12 - x + 12 = x^2

10.

x^2 - 7x + 5 - x^2 - 7x + 8 = 13 - 14x