5x²-13xy-6y²;6(m-n)²-10m+10n-4;-3y四次方+10y²+8
问题描述:
5x²-13xy-6y²;6(m-n)²-10m+10n-4;-3y四次方+10y²+8
答
1,(5x+2y)(x-3y)
2, 2(3m-3n+1)(m-n-2)
3,(2-3y^2)(y^2-4)