(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)][...
分解因式:(x-1)+b²(1-x),m²/9减n四次方/256,-4(x+2y)²+9(
(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)][...