如果(15a-7a-2)除(3a-2)=5a+1,那么15a²-7a-2因式分解的结果为_____ 48x-3x=0已知(x+y)的二次方-2x-2y+1=0,求2x+4xy+2y的二次方的值 x³-9x=x²-9 4x²-(x+1)²=0(a²+b²-c²²-2ab)除(a-b-c) (81
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![如果(15a-7a-2)除(3a-2)=5a+1,那么15a²-7a-2因式分解的结果为_____ 48x-3x=0已知(x+y)的二次方-2x-2y+1=0,求2x+4xy+2y的二次方的值 x³-9x=x²-9 4x²-(x+1)²=0(a²+b²-c²²-2ab)除(a-b-c) (81](/uploads/image/z/5244571-19-1.jpg?t=%E5%A6%82%E6%9E%9C%2815a-7a-2%29%E9%99%A4%283a-2%29%3D5a%2B1%2C%E9%82%A3%E4%B9%8815a%26%23178%3B-7a-2%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%E7%9A%84%E7%BB%93%E6%9E%9C%E4%B8%BA_____+48x-3x%3D0%E5%B7%B2%E7%9F%A5%EF%BC%88x%2By%EF%BC%89%E7%9A%84%E4%BA%8C%E6%AC%A1%E6%96%B9-2x-2y%2B1%3D0%2C%E6%B1%822x%2B4xy%2B2y%E7%9A%84%E4%BA%8C%E6%AC%A1%E6%96%B9%E7%9A%84%E5%80%BC+x%26%23179%3B-9x%3Dx%26%23178%3B-9+4x%26%23178%3B-%28x%2B1%29%26%23178%3B%3D0%28a%26%23178%3B%2Bb%26%23178%3B-c%26%23178%3B%26%23178%3B-2ab%29%E9%99%A4%28a-b-c%29+%2881)
如果(15a-7a-2)除(3a-2)=5a+1,那么15a²-7a-2因式分解的结果为_____ 48x-3x=0已知(x+y)的二次方-2x-2y+1=0,求2x+4xy+2y的二次方的值 x³-9x=x²-9 4x²-(x+1)²=0(a²+b²-c²²-2ab)除(a-b-c) (81
如果(15a-7a-2)除(3a-2)=5a+1,那么15a²-7a-2因式分解的结果为_____ 48x-3x=0
已知(x+y)的二次方-2x-2y+1=0,求2x+4xy+2y的二次方的值
x³-9x=x²-9 4x²-(x+1)²=0
(a²+b²-c²²-2ab)除(a-b-c) (81-x四次方)除(x²+9)除(x+3)
如果(15a-7a-2)除(3a-2)=5a+1,那么15a²-7a-2因式分解的结果为_____ 48x-3x=0已知(x+y)的二次方-2x-2y+1=0,求2x+4xy+2y的二次方的值 x³-9x=x²-9 4x²-(x+1)²=0(a²+b²-c²²-2ab)除(a-b-c) (81
12x^2-5x-2=(3x^2-2)*(4x^2+1) 2x^2+4xy+2y^2-8z^2=2(x+y+2z)*(x+y-2z) 解方程:{x+y^2=6,y=x}; y=x 则 x+x^2-6=0 (x+3)*(x-2)=0 x=-3或x=2 x-12+根号x=0; x=(12-x)^2 x=144+x^2-24x x^2-25x+144=0 (x-16)*(x-9)=0 x=16或x=9 x^2 +3x+根号(x^2+3x)=6 设x^2+3x=t 则t+根号t=6 根号t=6-t t=(6-t)^2 (t-4)*(t-9)=0 t=4或t=9 即x^2+3x=4或x^2+3x=9 x^2+3x=4时 (x+4)*(x-1)=0 x=1或x=-4 x^2+3x=9时 (x+3/2)^2=27/4 x=-3/2+3/2*根号3 或x=-3/2-3/2*根号3