2d 15Marking: 2D-15. Part #: KST92. Package: SOT-23. Datasheet: 46Kb4P. Manufacturer: Fairchild Semiconductor. Description: Hh Voltage Transistor. 131 Results.Rewrite d^ {2}-2d-15 as left (d^ {2}-5drht)+left (3d-15rht). Factor out d in the first and 3 in the second group. Factor out common term d-5 by using distributive property. All equations of