1.-3/1(三分之一) xy^2+4xy-6x=?2.27/8a^2b^3-9/4a^3b^23.x^n-x^n-14.简便方法:4.8^2-4*1.2*(-5.2)5.已知x^2+x=2,求x^4+x^3+2x-4的值6.已知x^2+2x=4,且2ax^2+4ax-12=0,求2a^2+a的值
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![1.-3/1(三分之一) xy^2+4xy-6x=?2.27/8a^2b^3-9/4a^3b^23.x^n-x^n-14.简便方法:4.8^2-4*1.2*(-5.2)5.已知x^2+x=2,求x^4+x^3+2x-4的值6.已知x^2+2x=4,且2ax^2+4ax-12=0,求2a^2+a的值](/uploads/image/z/3959345-65-5.jpg?t=1.-3%2F1%EF%BC%88%E4%B8%89%E5%88%86%E4%B9%8B%E4%B8%80%EF%BC%89+xy%5E2%2B4xy-6x%3D%3F2.27%2F8a%5E2b%5E3-9%2F4a%5E3b%5E23.x%5En-x%5En-14.%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%EF%BC%9A4.8%5E2-4%2A1.2%2A%28-5.2%295.%E5%B7%B2%E7%9F%A5x%5E2%2Bx%3D2%2C%E6%B1%82x%5E4%2Bx%5E3%2B2x-4%E7%9A%84%E5%80%BC6.%E5%B7%B2%E7%9F%A5x%5E2%2B2x%3D4%2C%E4%B8%942ax%5E2%2B4ax-12%3D0%2C%E6%B1%822a%5E2%2Ba%E7%9A%84%E5%80%BC)
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1.-3/1(三分之一) xy^2+4xy-6x=?2.27/8a^2b^3-9/4a^3b^23.x^n-x^n-14.简便方法:4.8^2-4*1.2*(-5.2)5.已知x^2+x=2,求x^4+x^3+2x-4的值6.已知x^2+2x=4,且2ax^2+4ax-12=0,求2a^2+a的值
1.-3/1(三分之一) xy^2+4xy-6x=?
2.27/8a^2b^3-9/4a^3b^2
3.x^n-x^n-1
4.简便方法:4.8^2-4*1.2*(-5.2)
5.已知x^2+x=2,求x^4+x^3+2x-4的值
6.已知x^2+2x=4,且2ax^2+4ax-12=0,求2a^2+a的值
1.-3/1(三分之一) xy^2+4xy-6x=?2.27/8a^2b^3-9/4a^3b^23.x^n-x^n-14.简便方法:4.8^2-4*1.2*(-5.2)5.已知x^2+x=2,求x^4+x^3+2x-4的值6.已知x^2+2x=4,且2ax^2+4ax-12=0,求2a^2+a的值
唉,肯定是老师布置的作业了,还拿来问百度啊?!
自己想.