Question

(x² - x - 56) by
(x-2) (x²+8x)​

Answer 1

Step-by-step explanation:

$(x - 2) (x^{2} + 8x) \\ x(x ^{2} + 8x) - 2(x ^{2} + 8x) \\ x ^{3} + 8 {x}^{2} - 2 {x}^{2} - 16x \\ = {x}^{3} + 6 {x}^{2} - 16x \\ now.( {x }^{2} - x - 56)( {x}^{3} + 6 {x}^{2} - 16x) \\ = {x}^{5} + 5 {x}^{4} - 62 {x}^{3} - 382 {x}^{2} + 16x - 366$