If the two roots of the equation X2 (is square) + (T-2) x + 5-T = 0 of X are greater than 2, then the value range of T is________
△≧0,(t-2)²-4(5-t)≧0
t²-16≧0
T ≤ - 4 or t ≥ 4
The axis of symmetry is greater than 2, that is: - (T-2) / 2 > 2
t-20
t>-5
To sum up, the value range of real number T is: - 5
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