1+25a的2次方+( )=(1-5a)的2次方.

2025-03-29 14:26:29
推荐回答(3个)
回答1:

1+25a^2+()=(1-5a)^2
()=(1-5a)^2-(1+25a^2)
=(25a^2-10a+1)-(1+25a^2)
=-10a

回答2:

-(600a^2+60a)

回答3:

(-10a)