Question

simplifique as expressões (x+1)² + (x-1)² + 2 • (x+1) • (x+1)

Answer 1

Vamos là

simplifique as expressões (x+1)² + (x-1)² + 2 • (x+1) • (x+1)

(x + 1)² = x² + 2x + 1

(x - 1)² = x² - 2x + 1

2*(x + 1)*(x + 1) = 2x² + 4x + 2

soma

4x² + 4x + 4