4a²-20a+m是完全平方式,则m=?4x²+( )+四分之一=( )²x²-二分之x+( )=( )²已知a+b=4,ab=-3,求(a-b)²(x³+mx+n)(x²-3x+4)中不含x³和x²项,求m,n的值4x²-2m+1可写
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![4a²-20a+m是完全平方式,则m=?4x²+( )+四分之一=( )²x²-二分之x+( )=( )²已知a+b=4,ab=-3,求(a-b)²(x³+mx+n)(x²-3x+4)中不含x³和x²项,求m,n的值4x²-2m+1可写](/uploads/image/z/15211178-26-8.jpg?t=4a%26%23178%3B-20a%2Bm%E6%98%AF%E5%AE%8C%E5%85%A8%E5%B9%B3%E6%96%B9%E5%BC%8F%2C%E5%88%99m%3D%3F4x%26%23178%3B%2B%EF%BC%88+%EF%BC%89%2B%E5%9B%9B%E5%88%86%E4%B9%8B%E4%B8%80%3D%EF%BC%88+%EF%BC%89%26%23178%3Bx%26%23178%3B-%E4%BA%8C%E5%88%86%E4%B9%8Bx%2B%EF%BC%88+%EF%BC%89%3D%EF%BC%88+%EF%BC%89%26%23178%3B%E5%B7%B2%E7%9F%A5a%2Bb%3D4%2Cab%3D-3%2C%E6%B1%82%EF%BC%88a-b%29%26%23178%3B%EF%BC%88x%26%23179%3B%2Bmx%2Bn%29%EF%BC%88x%26%23178%3B-3x%2B4%29%E4%B8%AD%E4%B8%8D%E5%90%ABx%26%23179%3B%E5%92%8Cx%26%23178%3B%E9%A1%B9%2C%E6%B1%82m%2Cn%E7%9A%84%E5%80%BC4x%26%23178%3B-2m%2B1%E5%8F%AF%E5%86%99)
4a²-20a+m是完全平方式,则m=?4x²+( )+四分之一=( )²x²-二分之x+( )=( )²已知a+b=4,ab=-3,求(a-b)²(x³+mx+n)(x²-3x+4)中不含x³和x²项,求m,n的值4x²-2m+1可写
4a²-20a+m是完全平方式,则m=?
4x²+( )+四分之一=( )²
x²-二分之x+( )=( )²
已知a+b=4,ab=-3,求(a-b)²
(x³+mx+n)(x²-3x+4)中不含x³和x²项,求m,n的值
4x²-2m+1可写成(2x+1)²的形式,求m
4a²-20a+m是完全平方式,则m=?4x²+( )+四分之一=( )²x²-二分之x+( )=( )²已知a+b=4,ab=-3,求(a-b)²(x³+mx+n)(x²-3x+4)中不含x³和x²项,求m,n的值4x²-2m+1可写
4a²-20a+m是完全平方式 则(2a-5)^2=4a^2-20a+25 m=25
4x²+(4x )+四分之一=(4x+1/2 )²
x²-二分之x+(1/16 )=(x-1/4 )²
已知a+b=4,ab=-3,求(a-b)²=31