Question

(x+2) (x-6) -(x-7) (x+7) >30-3x

Answer 1

$(x+2)(x-6)-(x-7)(x+7) textgreater 30-3x$

$x^2+2x-6x-12-(x^2-49) textgreater 30-3x$

$x^2+2x-6x-12-x^2+49 textgreater 30-3x$

$-4x+37 textgreater 30-3x$

$-4x+3x textgreater 30-37$

$-x textgreater -7$

$x textless 7$

------------------(7)--------------
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Ответ: $(-$ ∞ $;7)$

Answer 2

c interneta nashla i tuno skinula