Question

SIMPLIFIQUE AS EXPRESSÕES:
(x+1)²+(x+2)²


(2x+1)²+(3x+1)²



(x+5)²-x(x+3)

Answer 1

Resposta:

(x+1)² + (x+2)²

(x+1)(x+1) + (x+2)(x+2)

x² + 2x + 1 + x² + 4x + 4

2x² + 6x + 5

(2x+1)² + (3x+1)²

4x² + 4x + 1 + 9x² + 6x + 1

13x² + 10x + 2

(x+5)² - x(x+3)

(x+5)² - x² - 3x

x² + 10x + 25 - x² - 3x

7x + 25