Помогите решить, алгебра 9 класс. Created by MrParnisha. algebra-ru

Ответ:а(а+1)+5а=1 в=4 с=4Д=в²-4ас.Д = 4•4-4•1•4=0

Помогите решить, алгебра 9 класс...

MrParnisha @MrParnisha

July 2022 1 4 Report

Помогите решить, алгебра 9 класс

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Pizzanakizze005

Ответ:

а(а+1)+5

${a}^{2} + a + 5 \geqslant 1 - 3a \\ {a}^{2} + a + 3a \geqslant 1 - 5 \\ {a}^{2} + 4a \geqslant - 4 \\ a {}^{2} + 4a + 4 = 0$

а=1 в=4 с=4

Д=в²-4ас.

Д = 4•4-4•1•4=0

$x1 = \frac{ - b + \sqrt{d} }{ 2\times a} = \frac{ - 4 + 0 }{2} = - 2$

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