Question

calcule as multiplicaçoes de polinomios. a) (x+y) . (x+y) b) (x+2). (x+2) c) (a+1) . (a+1) d) (x-y). (x-y) e) (x-2).(x-2) f) (a-1).(a-1)

Answer 1

Explicação passo-a-passo:

a) (x+y)(x+y)= x^2 + xy+yx+y^2= x^2+2yx+y^2

b)(x+2)(x+2)= x^2+2x+2x+4=x^2+4x+4

c)(a+1)(a+1)= a^2+a+a+1=a^2+2a+1

d)(x-y)(x-y)= x^2-xy-yx+y^2= x^2-2xy+y^2

e)(x-2)(x-2)= x^2-2x-2x+4= x^2-4x+4

f)(a-1)(a-1)= a^2-2a+1