Question

01. Efectúa. 32x²y +47xy-((-13x2y +27xy) - 19x²y}​

Answer 1

$32 {x}^{2} y + 47xy - [( - 13 {x}^{2}y + 27xy ) - 19 {x}^{2}y ] = \\ 32 {x}^{2} y + 47xy - ( - 13 {x}^{2}y + 27xy - 19 {x}^{2}y ) = \\ 32 {x}^{2} y + 47xy + 13 {x}^{2} y - 27xy + 19 {x}^{2} y = \\ (32 {x}^{2}y + 13 {x}^{2}y + 19 {x}^{2} y ) + (47xy - 27xy) = \\ 64 {x}^{2} y + 20xy = \\ 4xy(16x + 5)$