Question

encontre o zero das funçoes :
a) f(x)=3x-4x+2

b) f(x)= 5x-4

Answer 1

a) 3x-4x+2=0
     -x+2=0
     -x=-2 (.-1)
      x = 2

b) 5x-4=0
    5x=4
      x=4/5