Question

Me ajudemmm
A)(-1/3)+(+2/5)=
B)(-3/4)-(-1/5)+(+2/5)=

Answer 1

Resposta:

) (+1/3) ÷ (-2/5) = (+1/3)*(-5/ 2) = -5/6 b) (-4/7) ... y = x - 4x + 3. Teremos por raiz:a)(-3, 1) b)(3,-1) c)(-3,-1) d)( 3,1) e)(3,2).