Question

(8x³+9x²-x+6) - (- x -7+7x³+3x²)=​

Answer 1

Explicación paso a paso:

$(8 {x}^{3} + 9 {x}^{2} - x + 6) - ( - x - 7 + 7 {x}^{3} + 3 {x}^{2}) =$

$8 {x}^{3} + 9 {x}^{2} - x + 6 + x + 7 - 7x {}^{3} - 3 {x}^{2}$

${x}^{3} + 6 {x}^{2} + 13$