y=4×+6
f (x)=-×+10
f (x)=-2×+5
Usuário anônimo:
precisa saber as raízes?
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Y= 4x + 6
0 = 4x + 6
- 6 = 4x
4x = - 6
x = - 6 (:2)
------
4 (:2)
x = - 3
-----
2
*************************
f (x) = - x + 10
0 = - x + 10
x = 10
******************************
f (x) = - 2x + 5
0 = - 2x +5
2x = 5
x = 5/2
0 = 4x + 6
- 6 = 4x
4x = - 6
x = - 6 (:2)
------
4 (:2)
x = - 3
-----
2
*************************
f (x) = - x + 10
0 = - x + 10
x = 10
******************************
f (x) = - 2x + 5
0 = - 2x +5
2x = 5
x = 5/2
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