Question

(4a^2+1)^2-16a^2 求解题过程和解题思路 在线等!

Answer 1

(4a^2+1)^2-16a^2

=(4a^2+1)^2-(4a)^2

=(4a^2+1-4a)(4a^2+1+4a)

=(2a-1)^2 x (2a+1)^2

若该式=0,则a=1/2 或a=-1/2