Question

f(x)=-x² +36 determine o zero da funçao

Answer 1

- 5x - 13 = 0
 5x = - 13

  x = - 13
           5

Answer 2

f(x)= -x^2+36
-x^2+36=0
-x^2=0-36
-x^2=-36. (-1)
x^2=36
x= raiz de 36
x=-/+ 6