помогите решить: 25х²+60 х+36=0 х²-8х+18=0. Created by lerik2001bars2. algebra-ru

помогите решить: 25х²+60 х+36=0 х²-8х+18=0...

lerik2001bars2 @lerik2001bars2

July 2022 1 4 Report

помогите решить:
25х²+60 х+36=0
х²-8х+18=0

Answers & Comments

alyonaryumova 25х² + 60x + 36 = 0
D = 60² - 4*25*36
D = 0
x = -60 / (2*25) = -6/5 = -1,2
x = -1,2

х² - 8х + 18 = 0
х² - 4x + 9 = 0
D = 16 - 36 = -20
нет корней

lerik2001bars2 спасибо, помогли)

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