Помогите пожалуйста решить эти неравенства : x ^{2} - 81 > 0 - 10x ^{2} + 7x - 1 \geqslant 0 3x - x ^{2} \leqslant 0 (x - 1)(x + 3)(x + 4) > 0 \frac{x(x + 2)}{(x - 2)(x + 1)} \leqslant 0 Помогите пожалуйста!

Предмет: Математика, автор: shestakova200520

Помогите пожалуйста решить эти неравенства :
$x ^{2} - 81 > 0$

$- 10x ^{2} + 7x - 1 \geqslant 0$
$3x - x ^{2} \leqslant 0$
$(x - 1)(x + 3)(x + 4) > 0$
$\frac{x(x + 2)}{(x - 2)(x + 1)} \leqslant 0$

Помогите пожалуйста!

Ответы

Автор ответа: satarovavita1808

••••••••••••••••••••••••••••••••Как-то так:)

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Ответы

Помогите пожалуйста решить эти неравенства :
$x ^{2} - 81 > 0$

$- 10x ^{2} + 7x - 1 \geqslant 0$
$3x - x ^{2} \leqslant 0$
$(x - 1)(x + 3)(x + 4) > 0$
$\frac{x(x + 2)}{(x - 2)(x + 1)} \leqslant 0$

Помогите пожалуйста!