数学题:(x+3y)(x_3y)_(x_3y)2,求解!
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/29 13:51:15
![数学题:(x+3y)(x_3y)_(x_3y)2,求解!](/uploads/image/z/1640463-15-3.jpg?t=%E6%95%B0%E5%AD%A6%E9%A2%98%EF%BC%9A%28x%2B3y%29%28x_3y%29_%28x_3y%292%2C%E6%B1%82%E8%A7%A3%21)
xJ@_
)JovIrчhNew4Q&bk(ЋB= zXWp(xo~C<!F5u>ھ~<r rgu!rpP,7L2?@I'Yixeln4NFA8'6HgO*cF" cI bHP1W: $A,PHF!1cșRK,YQXձ_),@''BXQN"'~(r>L۬ n;c-amVNЍ}tkWYUsWL
数学题:(x+3y)(x_3y)_(x_3y)2,求解!
数学题:(x+3y)(x_3y)_(x_3y)2,求解!
数学题:(x+3y)(x_3y)_(x_3y)2,求解!
=(X2-9y2)-(X2-6XY+9Y2)=X2-9Y2-X2+6XY-9Y2=6xy-18Y2