x4-2(a2+b2)x2+(a2-b2)2因式分解
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x4-2(a2+b2)x2+(a2-b2)2因式分解x4-2(a2+b2)x2+(a2-b2)2因式分解x4-2(a2+b2)x2+(a2-b2)2因式分解原式=x^4-2﹙a²+b
x4-2(a2+b2)x2+(a2-b2)2因式分解
x4-2(a2+b2)x2+(a2-b2)2因式分解
x4-2(a2+b2)x2+(a2-b2)2因式分解
原式=x^4-2﹙a²+b²﹚x²+﹙a²+b²﹚²-4a²b²
=﹙x²-a²-b²﹚²-﹙2ab﹚²
=﹙x²-a²-b²-2ab﹚﹙x²-a²-b²+2ab﹚
=[x²-﹙a+b﹚²][x²-﹙a-b﹚²]
=﹙x-a-b﹚﹙x+a+b﹚﹙x-a+b﹚﹙x+a-b﹚
x4-2(a2+b2)x2+(a2-b2)2
=(x^2-a^2-b^2)^2-(2ab)^2
=(x^2-a^2-b^2-2ab)(x^2-a^2-b^2+2ab)
=[x^2-(a+b)^2][x^2-(a-b)^2]
=(x-a-b)(x+a+b)(x-a+b)(x+a-b) .
〔x2-a2-b2〕2
x4-2(a2+b2)x2+(a2-b2)2因式分解
(a2+b2)(x2+y2)
因式分解a2-c2+2ab+b2-d2-2cd因式分解x4+2x2+1-x2-2ax-a2
计算:x2-(a2+b2)x+ab(a2-b2)
a2-2ab+b2
a2+b2
x4+ax3+2x2+bx+1=0有一个实数根,求a2+b2的最小值
ab(a2+b2)x2-(a+b2)x+(a2-b2)/(a2+b2)=02代表平方,求X
(a2+b2)(x2+y2)=( )2+( )2=( )2+( )2
ab(x2+1)+x(a2+b2)
ab(x2-y2)+xy(a2-b2)
(a2+2ab+b2)-(a2-2ab+b2)化简
(a4-b4)4/((a2+b2)2.(a2-b2)2)
(a2-b2)/(a2+2ab+b2)*(a3+b3)
因式分解(a2-b2)2-a2b2
b2+c2-2bc-a2
(3a2-3ab+2b2)+(a2+4ab-2b2)=4a2+ab+b2
2a-3b/b2-a2 -a+3b/a2-b2 +a+2b/a2-b2