Question

nesesito esto yap quien me ayuda ???? por fa

Answer 1

A+B=
$3 {x}^{4} + 5 {x}^{3} - 2 {x}^{2} + x - 7 + 8 {x}^{3} - 6 {x}^{2} - 3 = \\ 3 {x}^{4} + 13 {x}^{3} - 8 {x}^{2} + 1x - 10$
-3B + 4D=
$- 24 {x}^{3} + 18 {x}^{2} + 9 + 24 {x}^{2} - 4 {x}^{7} - 24 {x}^{5} + 16x = \\ - 4{x}^{7} + 0 {x}^{6} - 24 {x}^{5} + 0 {x}^{4} - 24 {x}^{3} + 42 {x}^{2} + 16x + 12$