Помогите, пожалуйста, 300(4). Created by a9444776. algebra-ru

Помогите, пожалуйста, 300(4)...

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3х³-9х²/2 - 8х/3 +4=0 домножим на 6

18х³-27х²-16х+24=0

9х²(2х-3)-8(2х-3)=0

(2х-3)*(9х²-8)=0

2х-3=0 или 9х²-8=0

2х=3 9х²=8

х=1,5 х²=8/9 х=+/-√8/9 = +/- (2√2) /3

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wangross

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