Equation: two of X 2-A ax + 4 = 0 are greater than 1, find the value range of real number a

Equation: two of X 2-A ax + 4 = 0 are greater than 1, find the value range of real number a

In order to make both of them greater than 1, 4a2 − 16 ≥ 01 − 2A + 4 > 0 − 2A2 > 1;, the solution is & nbsp; & nbsp; 2 ≤ a < 52