解方程:-1/12x^2+2/3x+5/3
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解方程:-1/12x^2+2/3x+5/3解方程:-1/12x^2+2/3x+5/3解方程:-1/12x^2+2/3x+5/3两边同乘12,化简为:x^2-8x-20=0整理得:(x+2)(x-10)
解方程:-1/12x^2+2/3x+5/3
解方程:-1/12x^2+2/3x+5/3
解方程:-1/12x^2+2/3x+5/3
两边同乘12,化简为:x^2-8x-20=0
整理得:(x+2)(x-10)=0
x1=-2 x2=10
等于8
-1/12x^2+2/3x+5/3
=-1/12(x²-8x-20)
=-1/12(x-10)(x+2)
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