Tìm x: a, (3x - 2)2 - (3x - 5).(3x + 2) = 11; b, (4x - 3)2 - (4x - 5).(4x + 5) = 32

* Tìm x :
a, (3x−2)2−(3x−5).(3x+2)=11
b, (4x−3)2−(4x−5).(4x+5)=32
c, (5x−2)2−(5x+3).(5x−5)=1
d, (x−4)2−(x−7).(2x−3)=5−x2