# Solve this:

$7)Givenconditionisa\xf7b=-2\phantom{\rule{0ex}{0ex}}i)when(a,b)=(2,-1)\phantom{\rule{0ex}{0ex}}\Rightarrow 2\xf7\left(-1\right)=-2\phantom{\rule{0ex}{0ex}}ii)when(a,b)=(-6,3)\phantom{\rule{0ex}{0ex}}\Rightarrow -6\xf73=-2\phantom{\rule{0ex}{0ex}}iii)when(a,b)=(18,-9)\phantom{\rule{0ex}{0ex}}\Rightarrow 18\xf7\left(-9\right)=-2$

For remaining question kindly post in separate thread for meaningful help.

Regards

**
**