4(x+y)^2-12(x+y)+9
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4(x+y)^2-12(x+y)+9
4(x+y)^2-12(x+y)+9
4(x+y)^2-12(x+y)+9
4(x+y)^2-12(x+y)+9
=[2(x+y)]^2-2*[2(x+y)]*3+3^2
=[2(x+y)-3]^2
=(2x+2y-3)^2
(2x+2y-3)^2
12(x+y)^3(y-x)/【4(x+y)^2(x-y)】
4-12(x-y)+9(x-y)^2 因式分解
4(x+y)^2-12(x+y)+9因式分解
4(x+y)^2-12(x+y)+9
4(x+y)^2-12(x+y)(x-y)+9(+y)^2因式分解,
4+12(x-y)+9(x-y)^
9(x-y)-12(y-x)^2
因式分解2x^2y-x^3-xy^2 4-12(x-y)+9(x-y)^22x^2y-x^3-xy^24-12(x-y)+9(x-y)^2
已知X.x+y.y-4x+2y+5=0,求4X.X-12X Y+9Y.y的值
(1).x^2-xy+x (2).m^2n-mn^2+mn (3).9x^3y^3-21x^3y^2+12x^2y^2 (4).x^2(x-y)+y^2(x-y)多项式因式分解
4+12(x-y)+9(x-y)
4-12(x-y)+9(x-y)^2因式分解
9(x-y)^2+12(x-y)+4因式分解
9(x-y)^2-12(x-y)+4=快
4+12(x-y)+9(x-y)^2用因式分解
9-12(x+y)+4(x+y)^2因式分解
分解因式:4(x+y)^2-12(x+y)+9
12(x-y)-4-9(x-y)^2分解因式