Làm tính chia: ${(x - y)}^{5} : {(y - x)}^{4}$

Question

Ta có: y – x= -1.(x – y) nên ${(y - x)}^{4} = [- 1 . {(x - y)}^{4}] = {(- 1)}^{4} . {(x - y)}^{4} = {(x - y)}^{4}$

${(x - y)}^{5} : {(y - x)}^{4}$ = ${(x - y)}^{5} : {(x - y)}^{4}$ = x – y

Answer 1

Trả lời:

Giải bởi Vietjack

Ta có: y – x= -1.(x – y) nên ${(y - x)}^{4} = [- 1 . {(x - y)}^{4}] = {(- 1)}^{4} . {(x - y)}^{4} = {(x - y)}^{4}$

${(x - y)}^{5} : {(y - x)}^{4}$ = ${(x - y)}^{5} : {(x - y)}^{4}$ = x – y

Làm tính chia: x-y5:y-x4