Question

calcule d) (x+2)² e) (r+2s)² f) (10x+y)² g) (3y+3a)² h) (-5+n)²​

Answer 1

Resposta:

d) (x+2)² =(x+2)×(x+2)=

x²+4x+4

e) (r+2s)² =

(r+2s)×(r+2s)=r²+4sr+4s²

f) (10x+y)²=(10x+y) ×(10x+y)=100x²+20xy+y²

g) (3y+3a)² =(3y+3a)×(3y+3a)=9y²+6ya+9a²

h) (-5+n)²=(-5+n)×(-5+n)=25-10n+n²