yorx
yorx
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y°=[-1(2-x)+(3-x)(-1)](5-x)+ (3-x)(2-x)(-1) y°(-2+x-3+x)(5-x) -6+3x+2x-x^2 y°= (-5+2x)(5-x)-x^2+5x-6 y°=-25+5x+10x-2x^2-x^2+5x-6 y°=-3x^2+20x-31
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y°=[-1(2-x)+(3-x)(-1)](5-x)+ (3-x)(2-x)(-1) y°(-2+x-3+x)(5-x) -6+3x+2x-x^2 y°= (-5+2x)(5-x)-x^2+5x-6 y°=-25+5x+10x-2x^2-x^2+5x-6 y°=-3x^2+20x-31