⑴25x²—16y² (2)(a—b)(x—y)—(b—a)(x+y) (3)a²—4ab+4b² (4)4+12(x—y)+9(X—y)²
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⑴25x²—16y²(2)(a—b)(x—y)—(b—a)(x+y)(3)a²—4ab+4b²(4)4+12(x—y)+9(X—y)²⑴25x&sup
⑴25x²—16y² (2)(a—b)(x—y)—(b—a)(x+y) (3)a²—4ab+4b² (4)4+12(x—y)+9(X—y)²
⑴25x²—16y² (2)(a—b)(x—y)—(b—a)(x+y) (3)a²—4ab+4b² (4)4+12(x—y)+9(X—y)²
⑴25x²—16y² (2)(a—b)(x—y)—(b—a)(x+y) (3)a²—4ab+4b² (4)4+12(x—y)+9(X—y)²
25x²—16y²
=(5x)^2-(4y)^2
=(5x+4y)(5x-4y)
(a—b)(x—y)—(b—a)(x+y)
=(a—b)(x—y)+(a-b)(x+y)
=(a-b)(x-y+x+y)
=2x(a-b)
a²—4ab+4b²
=(a-2b)^2
=(a-2b)(a-2b)
4+12(x—y)+9(X—y)²
=[(3(x-y)+2]^2
=[(3(x-y)+2][(3(x-y)+2]
分解因式:4b²c²-(b²+c²-a²)² 25(x+y)²-16(x-y)² x²-6x+9
1.(x+y)²-4xy=( )²2.x²-( )+25y²=( )²3.x²-8x²y²+16y四次方=( )²4.7.2²-2.8²= .
⑴ a²—16⑵16(x+y)²—25(x-y)²⑶ a²(a—b)+b²(b—a)
(x²+4y²)²-16x²y² 因式分解
⑴9(x-y)²-25 ⑵(x²-y)²-(2y-2)² ⑶(a²-2b)²-(1-2b
求助:几道因式分解题⑴(x+y)^4+(x²-y²)²+(x-y)^4⑵(x^4-4x²+1)(x^4+3x²+1)+10x^4⑶16(6x-1)(2x-1)(3x+1)(x-1)+25⑷a³b-ab³+a²+b²+1⑸(x²-y²)²-8(x²+y&s
16x²y²-9 .
已知x²y²+x²+y²=10xy-16 求x,y
16x²y²z²-9分解因式
分解因式 16x²y²z²-9
(1) (m—n)²—n² (2)49(a-b)²—16(a+b)²(3) (2x+y)²—(x+2y)² (4) (x²+y²)²—x²y²(5)3ax²—3ay²
把(2z²-2x²-2y²)²-16x²y²因式分解
⑴25x²—16y² (2)(a—b)(x—y)—(b—a)(x+y) (3)a²—4ab+4b² (4)4+12(x—y)+9(X—y)²
1.因式分解(1) 1-4x²y²(2) 16m²+25n²+40mn(3) 2a³-12a²x+18ax²2.填空(1)9x²-( )+b²=( -b)²(2)x^4+4x²+( )=(x²+ )²(3)p²-3p+( )=(p- )²(4)25a²+24a+( )=5a+( )²麻烦写
因式分解: 16(x-y)²-9(x+y)²
16(x-y)²-9(x+y)²
麻烦各位了.数学题(1)12a³b²-9a²+3ab(2)121x²-144y²(3)4(a-b)²-(x-y)²(4)(x-2)²+10(x-2)+25(5)(a²-2ab+b)²-4(6)16x²-4y²(7)m²(x-y)+n²(y-x)
x²-9x²y²+6xy-1a²b²+16ab+60