学渣不懂,求解、
=(x+1.5)2-(6.5)2=(x+8)(x-5).原式=(y+1)(y+2)-12=y2+3y+2-12=y2+3y-10=(y+5)(y-2)=(x2+x+5)(...
=(x+1.5)2-(6.5)2
=(x+8)(x-5).
原式=(y+1)(y+2)-12
=y2+3y+2-12=y2+3y-10
=(y+5)(y-2)
=(x2+x+5)(x2+x-2)
=(x2+x+5)(x+2)(x-1) 展开
=(x+8)(x-5).
原式=(y+1)(y+2)-12
=y2+3y+2-12=y2+3y-10
=(y+5)(y-2)
=(x2+x+5)(x2+x-2)
=(x2+x+5)(x+2)(x-1) 展开
1个回答
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询