分解因式181^2-61^2/301^2-181^2求求高手了(181^2-61^2)/(301^2-181^2)

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分解因式181^2-61^2/301^2-181^2求求高手了(181^2-61^2)/(301^2-181^2)

分解因式181^2-61^2/301^2-181^2求求高手了(181^2-61^2)/(301^2-181^2)
分解因式181^2-61^2/301^2-181^2求求高手了
(181^2-61^2)/(301^2-181^2)

分解因式181^2-61^2/301^2-181^2求求高手了(181^2-61^2)/(301^2-181^2)
(181^2-61^2)/(301^2-181^2)
=(181+61)(181-61)/(301+181)(301-181)
=242*120/482*120
=242/482
=121/241

[(181+61)(181-61)]/[(301+181)(301-181)]
=(342*120)/(482*120)
=342/482