## Precalculus (6th Edition) Blitzer

The value is $2$.
Consider the given expression, \begin{align} & 2\left( -5 \right)-\left( -3 \right)\left( 4 \right)=-10-\left( -12 \right) \\ & =-10+12 \\ & =2 \end{align} This implies that, $2\left( -5 \right)-\left( -3 \right)\left( 4 \right)=2$ Therefore, the value of the expression is 2.