Răspuns:
Explicație pas cu pas:
g)
(x + 1 + 3x + 1)/(2x + 1) = (4x + 2)/(2x + 1) = 2(2x + 1)/(2x + 1) = 2
h)
(3a + 2b + 2a + 3b)/(a + b) = (5a + 5b)/(a + b) = 5(a + b)/(a + b) = 5
g) x/(2×x+1)+1/(2×x+1)+(3×x+1)/(2×x+1)=
=(x+1+3×x+1)/(2×x+1)=
=(4×x+2)/(2×x+1)=
=2×(2×x+1)/(2×x+1)=2
h) (3×a+2×b)/(a+b)+(2×a+3×b)/(a+b)=
=(3×a+2×b+2×a+3×b)/(a+b)=
=(5×a+5×b)/(a+b)=
=5×(a+b)/(a+b)=5
