Question

Calcule A (x+11).(x-11) B (5-a3).(5+a3 C (a2-5).(a2+5) D (3/4x+y).(3/4x-y)

Answer 1

Resposta:

a) (x+11).(x-11)=x^2-121

b) (5-a^3).(5+a^3)=25-a^6

c)(a^2-5).(a^2+5)=a^4-25

d) (3/4x+y).(3/4x-y)=9/16x^2-y^2