(4a+1)∧2-16a∧2(4a^2+1)^2-16a^2=(4a^2+4a+1)(4a^2-4a+1)怎么变成这样

来源:学生作业帮助网 编辑:作业帮 时间:2024/06/13 07:52:14
(4a+1)∧2-16a∧2(4a^2+1)^2-16a^2=(4a^2+4a+1)(4a^2-4a+1)怎么变成这样
x=N@ED@ػ#; %hcMDE ( 8'hDoyv⢿}?bq:2 k2j٫euy47wc,_b~aF6}Y8zɫ;*jm'z _p"ZDeΎO填ۭrv:/͊4'E

(4a+1)∧2-16a∧2(4a^2+1)^2-16a^2=(4a^2+4a+1)(4a^2-4a+1)怎么变成这样
(4a+1)∧2-16a∧2
(4a^2+1)^2-16a^2=(4a^2+4a+1)(4a^2-4a+1)怎么变成这样

(4a+1)∧2-16a∧2(4a^2+1)^2-16a^2=(4a^2+4a+1)(4a^2-4a+1)怎么变成这样
(4a^2+1)^2-16a^2
=(4a^2+1)^2-(4a)^2
=[(4a^2+1)+4a][(4a^2+1)-4a]
=(4a^2+4a+1)(4a^2-4a+1)
=(2a+1)^2*(2a-1)^2