Question

dati numar 2 factor comun

a)2y +2x
b) 2x37 +2x63
c)2 +2p
d)12y -2
e 2+4+6+......+50

Answer 1

Răspuns:

a. 2×(x+y)

b. 2×(37+63)= 2×100=200

c. 2×(1+p)

d. 2×(6y-2)

e. 2×(1+2+3+...+25)

Answer 2

Răspuns:

2y+2x=2(y+x)

2x37+2x63=2(37+63)=2x100=200

2+2p=2(1+p)

12y-2=2(6y-1)

2+4+6+...+50=2(1+2+3+...+25)=2((25x26):2)=2x325=650

Explicație pas cu pas: