Question

Simplificar (4x 2-6)(-x 4+9)-(-5x 3-7)(x 2+4)

Answer 1

Explicación paso a paso:

$(4 {x}^{2} - 6)( - {x}^{4} + 9) - ( - 5 {x}^{3} - 7)( {x}^{2} + 4) \\ - 4 {x}^{6} + 36 {x}^{2} + 6 {x}^{4} - 54 - ( - 5 {x}^{5} - 20 {x}^{3} - 7 {x}^{2} - 28) = \\- 4 {x}^{6} + 36 {x}^{2} + 6 {x}^{4} - 54 + 5 {x}^{5} + 20 {x}^{3} + 7 {x}^{2} + 28 = \\ - 4{x}^{6} + 5 {x}^{5} + 6 {x}^{4} + 20 {x}^{3} + 43 {x}^{2} - 26 \: respuesta$