Предмет: Алгебра, автор: ainash11082018

$2 {x}^{2} + 3x - 5 \leqslant 0$

Ответы

Автор ответа: AlenaRayskayaa

1

Ответ:

x=[-5/2; 1]

Объяснение:

2x´2+3x-5<=0

2x´2+5x-2x-5<=0

x(2x+5)-(2x+5)<=0

(2x+5)(x-1)<=0

{2x+5<=0

x-1=>0

{2x+5=>0

x-1<=0

{x<=-5/2

x=>1

{x=>-5/2

x<=1

x=нет решения

x=[-5/2; 1]

Ответ: x=[-5/2; 1]

Автор ответа: bikabushhhh

1

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