已知6x2-7x2-3y2+14x+y+a=(2x-3y+b)(3x+y+c),确定a b c的值
问题描述:
已知6x2-7x2-3y2+14x+y+a=(2x-3y+b)(3x+y+c),确定a b c的值
答
6x2-7xy-3y2+14x+y+a=(2x-3y+b)(3x+y+c),
14=2c+3b,1=b-3c,a=bc,∴a=4,b=4,c=1.