Question

Ma puteți ajuta va rog am test..​

Answer 1

1)

$= x$

2)

$- 3(2x + 1)$

3)

${x}^{2} - x - 1$

4)

$6x - {2x}^{2}$

5)

${x}^{2} - 8x + 16$

6)

${x}^{2} - 9$