Автор - maruha3008

помогите пожалуйста решить​

Ответ

Автор - ldutpaeva2005

Пошаговое объяснение:

в последнем я цифру не поняла

Ответ

Автор - denisstretyakov

1)

displaystyle tt |x|=1,2\displaystyle tt bold{x_1=1,2}\displaystyle tt bold{x_2=-1,2}

2)

displaystyle tt |x|=-15 : to : boxed{bold{xin oslash}} - нет корней

3)

displaystyle tt |x|=0\displaystyle tt bold{x=0}

4)

displaystyle tt |x-16|=11\displaystyle tt x-16=11\displaystyle tt x=11+16\displaystyle tt bold{x_1=27}\displaystyle tt x-16=-11\displaystyle tt x=-11+16\displaystyle tt bold{x_2=5}

5)

displaystyle tt 7cdot|x|-11=3\displaystyle tt 7cdot|x|=3+11\displaystyle tt 7cdot|x|=14\displaystyle tt |x|=14div7\displaystyle tt |x|=2\displaystyle tt bold{x_1=2}\displaystyle tt bold{x_2=-2}

6)

displaystyle tt ||x+5|+8|=1\displaystyle tt |x+5|+8=1\displaystyle tt |x+5|=1-8\displaystyle tt |x+5|=-7

displaystyle tt boxed{bold{xin oslash}} - нет корней

7)

displaystyle tt |9-|x+2||=4\\ displaystyle tt 9-|x+2|=4\displaystyle tt -|x+2|=4-9\displaystyle tt -|x+2|=-5\displaystyle tt |x+2|=5\displaystyle tt x+2=5\displaystyle tt x=5-2\displaystyle tt bold{x_1=3}\displaystyle tt x+2=-5\displaystyle tt x=-5-2\displaystyle tt bold{x_2=-7}

displaystyle tt 9-|x+2|=-4\displaystyle tt -|x+2|=-4-9\displaystyle tt -|x+2|=-13\displaystyle tt |x+2|=13\displaystyle tt x+2=13\displaystyle tt x=13-2\displaystyle tt bold{x_3=11}\displaystyle tt x+2=-13\displaystyle tt x=-13-2\displaystyle tt bold{x_4=-15}

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