Co_Worker
幼苗
共回答了18个问题采纳率:83.3% 举报
(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)
1年前
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sunbelly
举报
(1)6乘x的n+1次方-14乘x的n次方+8x (2)(x²+3x)²--2(x²+3x)-8 (3)a²+b²-2ab-2b+2a+1 (4)(x+1)(x+2)(x+3)(x+4)+1 (5)(1-a²)(1-b²)-4ab