Решите уравнение: (4x+5)^2=4(x+5)^2. Created by dinar45890. matematika-ru

Решите уравнение: (4x+5)^2=4(x+5)^2...

August 2022 1 7 Report

Решите уравнение:
(4x+5)^2=4(x+5)^2

Answers & Comments

Pxoenix9669 16х^2+40х+25= 4(х^2+10х+25)
16х^2+40х+25= 4х^2+40х+100
16х^2+40х+25- 4х^2-40х-100=0
12х^2-75=0
12х^2=75
х^2=6 целых 1/4
х^2=6,25
х1=2,5, х2=-2,5

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