15x'2+x-2,5x'2+6xy-8y'2

因式分解30题(要过程)am+an+bm+bn x^2+5y-xy-5x x2+xy+2xz+x (a+b)x-(b+a)y -12x(x-y)-(y-x)x^2 2x^2+4x+2 x(x+z)-y(y+z) 2(x^2-3ab)+x(4a-3b) 4x^2+12xy+9y^2-25 x^4-16 16x^4-1 x^2+9x+8 x^2-10xy+24y^2 2x^2+15xy-8y^2 3x^2-6xy+3y^2 24x^2+22x-21 -x^2+4xy- 化简：3x^2-[5xy-(x^y-3xy)+4x^2y-8xy] 因式分解 x-xy+3y-3x 2x+xy-y-4x+5y-6 诺x+y=6,xy=4 求(5x-4y-3xy)-(8x-y+2xy) 因式分解5x^2-15x+2xy-6y 因式分解:5x^2+6y-15x-2xy 因式分解:5X^2 - 15x - 2xy + 6y 15x'2+x-2,5x'2+6xy-8y'2 因式分解x(x+1)(x^2+5x+6)-8 x^ 2+5xy+x+3y+2y^2 5x^2+8xy+5x^2+6x+5=0求X Y 5X² 6XY-8X²因式分解还有7X²+13X-2 2x²-5X-12 7X²-19X-6X²Y²+2XY-8X²+2XY-8Y² 2X²-5X-12 7X²-19X-6X²Y²+2XY-8X²+2XY-8Y² 因式分解3x^2-6xy+x (x-2xy)*(-xy+2y*y)-(3x*x-2xy)(x-9xy+6y*y)答案应为-2x-x*x-3x， 3x-2xy-8-2x+6xy-x²+6、-x²+2xy-y²-3x²-2xy+2y²合并同类项 *-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X || 5x^3y*(-3y)^2+(-6xy)^2*(-xy)+xy^3*(-4x^2)