Question

(7x-6+2x²)+(4x²_2x-3)​
ayuda

Answer 1

$(7x - 6 + 2 {x}^{2} ) + (4 {x}^{2} - 2x - 3) = \\ 7x - 6 + 2 {x}^{2} + 4 {x}^{2} - 2x - 3 = \\ (7x - 2x) + ( - 6 - 3) + (2 {x}^{2} + 4 {x}^{2} ) = \\ 5x + ( - 9) + 6 {x}^{2} = \\ 5x - 9 + 6 {x}^{2}$