(1)m²-12m+20 =(m-10)(m-2)
(2)x²y²-7xy+10=(xy-5)(xy-2)
(3)(2a+b)²-18(2a+b)-40 =(2a+b-20)(2a-b+2)
(4)a的四次方-13a²+36=(x+2)(x-2)(x+3)(x-3)
(5)x的三次方-5x²y-24xy² =x(x-8y)(x+3y)
(6)10-3a-a²=-(a+5)(a-2)
(7)24x²+25x+6 =(3x+2)(8x+3)
(8)x的六次方+7x的三次方-8=(x+2)(x²-2x+4)(x-1)(x²+x+1)
(9)-2m²+7m-3 =-(x-3)(2x-1)
(10)9x的四次方-82x²+9 =(3x+1)(3x-1)(x+3)(x-3)