Trả lời:
Giải bởi Vietjack
d) x+20225−x+20223=x2+1011
x+20225−x+20223=x2+20222
x+20225−x+20223=x+20222
x+20225−x+20223−x+20222=0
(x+2022).(15−13−12)=0
x + 2022 = 0 (vì 15−13−12≠0)
x = –2022.
Vậy x = –2022.
d) x+20225−x+20223=x2+1011
x+20225−x+20223=x2+20222
x+20225−x+20223=x+20222
x+20225−x+20223−x+20222=0
(x+2022).(15−13−12)=0
x + 2022 = 0 (vì 15−13−12≠0)
x = –2022.
Vậy x = –2022.