Решите дискриминантное уравнение : x^2+2х-8=0 Полное Решение. Created by band69. algebra-ru

Решите дискриминантное уравнение : x^2+2х-8=0 Полное Решение...

band69 @band69

June 2022 1 9 Report

Решите дискриминантное уравнение :
x^2+2х-8=0 Полное Решение

Answers & Comments

ShirokovP

Verified answer

X^2 + 2x - 8 = 0
D = b^2 - 4ac = 2^2 - 4*1*(-8) = 4 + 4*8 = 4 + 32 = 36
x1 = ( - 2 + √36)/2 = ( - 2 + 6)/2 = - 1 + 3 = 2
x2 = ( - 2 - √36)/2 = ( - 2 - 6)/2 = - 1 - 3 = - 4

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