运用公示 (m²+2m)²+2(m²+2m)+1 -9x³+18x²-9x详细过程

运用公示 (m²+2m)²+2(m²+2m)+1 -9x³+18x²-9x详细过程
运用公示 (m²+2m)²+2(m²+2m)+1 -9x³+18x²-9x
详细过程

运用公示 (m²+2m)²+2(m²+2m)+1 -9x³+18x²-9x详细过程
(m²+2m+1)²-9(x²-2x+1)=(m+1)的四次方-9(x-1)²={(m+1)²-3(x-1)}*{(m+1)²+3(x-1)}=(m²+2m-3x+4)*(m²+2m+3x_2)