1003206202

SubArea: 
Quadratic functions
Level: 
A
Project ID: 
1003206202
Accepted: 
1
Clonable: 
0
Easy: 
0
Given f(x)=−12x2+x+32, find all input values of f such that the output values of f are positive.
x∈(−1;3)
x∈(−∞;−1)∪(3;+∞)
x∈(−3;1)
x∈(−∞;−3)∪(1;+∞)