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#1:
![y=6x^2+12x+5, [-2;3]\y'=12x+12\12x+12=0\x=-1\y(-1)=-1-min.\y(-2)=5\y(3)=95-max.\\ y=6x^2+12x+5, [-2;3]\y'=12x+12\12x+12=0\x=-1\y(-1)=-1-min.\y(-2)=5\y(3)=95-max.\\](https://tex.z-dn.net/?f=y%3D6x%5E2%2B12x%2B5%2C+%5B-2%3B3%5D%5Cy%27%3D12x%2B12%5C12x%2B12%3D0%5Cx%3D-1%5Cy%28-1%29%3D-1-min.%5Cy%28-2%29%3D5%5Cy%283%29%3D95-max.%5C%5C)
#2:
![y=4x^5-5x^4-15, [-1;1]\y'=20x^4-20x^3\20x^4-20x^3=0\20x^3(x-1)=0\ left { {{x_1=0} atop {x_2=1}} right.\y(0)=-15-max.\y(1)=-16\y(-1)=-24-min.\ y=4x^5-5x^4-15, [-1;1]\y'=20x^4-20x^3\20x^4-20x^3=0\20x^3(x-1)=0\ left { {{x_1=0} atop {x_2=1}} right.\y(0)=-15-max.\y(1)=-16\y(-1)=-24-min.\](https://tex.z-dn.net/?f=y%3D4x%5E5-5x%5E4-15%2C+%5B-1%3B1%5D%5Cy%27%3D20x%5E4-20x%5E3%5C20x%5E4-20x%5E3%3D0%5C20x%5E3%28x-1%29%3D0%5C+left+%7B+%7B%7Bx_1%3D0%7D+atop+%7Bx_2%3D1%7D%7D+right.%5Cy%280%29%3D-15-max.%5Cy%281%29%3D-16%5Cy%28-1%29%3D-24-min.%5C+)
#2:
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