= 3 M^4 / N^2
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Ответ:
Объяснение:
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1)(4х²+4х+1)/4х=(2х+1)²/4х
2)(4х²-1)/4х
3)(2х+1)²/4х:(4х²-1)/4х=(2х+1)²*4х/4х*(2х-1)(2х+1)=(2х+1)/(2х-1)=
=(23+1)/(23-1)=24/22=12/11=1 1/11
1/36+1/45=1/20
1/1/20=1*20/1=20
Ответ: 20