Question

3. Resuelve:
(x + 5)2=
(x + 6) - (x + 9) =
(7x + 4). (7x - 2) =
(b-5)3 =​

Answer 1

(x + 5)²  

x² + 10x + 25

(x + 6) - (x + 9)

x + 6 - x - 9

x - x + 6 - 9

-3

(7x + 4). (7x - 2)

49x²- 14x + 28x  - 8

49x² + 14x  - 8

(b-5)³ ​

b³ -  15b² + 75b - 125

Eternamente axllxa