Two cutting tools with tool life equations given below

Two cutting tools with tool life equations given below are being compared:
Tool 1: VT^0.1 = 150
Tool 2: VT^0.3 = 300
where V is cutting speed in m/minute and T is tool life in minutes. The break even cutting speed beyond which Tool 2 will have a higher tool life is ________ m/minute.

VT^0.1 = 150
VT^0.3 = 300
For break even cutting speed,
3ln150 – 3ln V – ln 300 – ln V
V = 106.66m/ min