Найдите множество решений неравенства (x −1)(x − 3) ≤ 27 − 2x .. Created by QFoiL. algebra-ru

Найдите множество решений неравенства (x −1)(x − 3) ≤ 27 − 2x...

QFoiL @QFoiL

July 2022 1 3 Report

Найдите множество решений неравенства (x −1)(x − 3) ≤ 27 − 2x .

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Gviona

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(x-1)(x-3)<=27-2x
x^2-3x-x+3-27+2x<=0
x^2-2x-24<=0
x^2-2x-24=0
D=(-2)^2-4*1*(-24)=100
x1=(2-10)/2=-4
x2=(2+10)/2=6
______+_____[-4]______-_____[6]_____+_____
////////////////////////////
Ответ:x e [-4; 6]

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QFoiL July 2022 | 0 Ответы

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