Question

Simplifique as Expressões :
b-(x+2)² + (x-2)²
c-(5x+1)²+(5x-1)²
d-(x-8)²-(x+8)²
e-(5y-3)²+(5y+3)²

Answer 1

Boa noite

de forma geral

(a - b)² + (a + b)² 
a² - 2ab + b² + a² + 2ab + b² = 2a² + 2b²

b) (x+2)² + (x-2)² = 2x² + 8 
c- (5x+1)² + (5x-1)² = 50x² + 2
d- (x-8)² - (x+8)² = -32x
e- (5y-3)² + (5y+3)² = 50y² + 18