分解因式:(x-1)+b²(1-x),m²/9减n四次方/256,-4(x+2y)²+9(2x-y)²
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分解因式:(x-1)+b²(1-x),m²/9减n四次方/256,-4(x+2y)²+9(2x-y)²分解因式:(x-1)+b²(1-x),m
分解因式:(x-1)+b²(1-x),m²/9减n四次方/256,-4(x+2y)²+9(2x-y)²
分解因式:(x-1)+b²(1-x),m²/9减n四次方/256,-4(x+2y)²+9(2x-y)²
分解因式:(x-1)+b²(1-x),m²/9减n四次方/256,-4(x+2y)²+9(2x-y)²
(x-1)+b²(1-x)
=(x-1)(1-b²)
=(x-1)(1-b)(1+b)
m²/9减n四次方/256
=(m/3)²-(n²/16)²
=(m/3-n²/16)(m/3+n²/16)
-4(x+2y)²+9(2x-y)²
=[3(2x-y)-2(x+2y)][3(2x-y)+2(x+2y)]
=(6x-3y-2x-4y)(6x-3y+2x+4y)
=(4x-7y)(8x+y)