Question 30: Calculate the value of the expression \(A=(4-5 x) \cdot(3 x-2)+(3-2 x) \cdot(x-2) \text { at } x=-2 \ ):

\(A=(4-5 x) \cdot(3 x-2)+(3-2 x) \cdot(x-2) \)

\(\begin{aligned} &A=12 x-8-15 x^{2}+10 x+3 x-6-2 x^{2}+4 x\\ &A=-17 x^{2}+ 29 x-14\\ &\text { With } x=-2 \text {, instead of the expression we have: }\\ &A=-17 \cdot(-2)^{2}+29 \cdot(- 2)-14\\ &A=-68-58-14\\ &A=-140 \end{aligned}\)