Ответы
Ответ дал:
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1) ![left { {{10-2x geq 9-x} atop {-5x^2+8x-43 geq -4x^2-5x-1}} right.
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left { {{-x geq -1} atop {x^2-13x+42 leq 0}} right.
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left { {{x leq 1} atop {(x-6)(x-7) leq 0}} right.
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left { {{x leq 1} atop {6 leq x leq 7}} right.](https://tex.z-dn.net/?f=+left+%7B+%7B%7B10-2x+geq+9-x%7D+atop+%7B-5x%5E2%2B8x-43+geq+-4x%5E2-5x-1%7D%7D+right.+%0A%5C%0A+left+%7B+%7B%7B-x+geq+-1%7D+atop+%7Bx%5E2-13x%2B42++leq+0%7D%7D+right.+%0A%5C%0A+left+%7B+%7B%7Bx++leq+1%7D+atop+%7B%28x-6%29%28x-7%29++leq+0%7D%7D+right.+%0A%5C%0A+left+%7B+%7B%7Bx++leq+1%7D+atop+%7B6+leq+x+leq+7%7D%7D+right.+ "left { {{10-2x geq 9-x} atop {-5x^2+8x-43 geq -4x^2-5x-1}} right.
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left { {{-x geq -1} atop {x^2-13x+42 leq 0}} right.
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left { {{x leq 1} atop {(x-6)(x-7) leq 0}} right.
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left { {{x leq 1} atop {6 leq x leq 7}} right.")
Ответ: нет решений
2)![left { {{6x+1 leq 5x-3} atop {12-2x geq 10-x}} right.
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left { {{x leq -4} atop {-x geq -2}} right.
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left { {{x leq -4} atop {x leq 2}} right.
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x leq -4](https://tex.z-dn.net/?f=+left+%7B+%7B%7B6x%2B1+leq+5x-3%7D+atop+%7B12-2x+geq+10-x%7D%7D+right.+%0A%5C%0A+left+%7B+%7B%7Bx+leq+-4%7D+atop+%7B-x+geq+-2%7D%7D+right.+%0A%5C%0A+left+%7B+%7B%7Bx+leq+-4%7D+atop+%7Bx++leq++2%7D%7D+right.+%0A%5C%0Ax+leq+-4 "left { {{6x+1 leq 5x-3} atop {12-2x geq 10-x}} right.
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left { {{x leq -4} atop {-x geq -2}} right.
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left { {{x leq -4} atop {x leq 2}} right.
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x leq -4")
Ответ: x<=-4
Ответ: нет решений
2)
Ответ: x<=-4
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