What points do not satisfy the inequality 4x^(2)+2x-8<=0? 2. What are the solution set of {(:12-4x-x^(2)>=0)?}

(b) Solve the instance max 17x1 + 10x2 + 25x3 + 17x4 5x1 + 3x2 + 8x3 + 7x4 ≤ 12 x = {0, 1}4 by branch-and-bound. Always branch first on the node with the best bound. You must number the nodes as you explore them. Name

Solve the inequality 2x^2 + 3x - 9 > 0    I got x= − 3 / 2  or x=3 but im not sure if its correct

y is less than or equal to -x^2+8y is less than or equal to -x+2y>-5 Is the solution set the empty set?