解答

解答

求解步骤
数字相减:
将 到右边
两边除以

作图

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流行的例子

-5y-2<8s+4<= 7化简 (2/3 x^5y^5)*(1/3 x^2y^2)x+6>3因式分解 4x^2-12x+9