将一多项式[(17x2-3x+4)-(ax2+bx+c)],除以(5x+6)后,得商式为(2x+1),余式为0.求abc=?
(5x+6)(2x+1)=10x^2+17x+6
(17x2-3x+4)-(10x^2+17x+6)=7x^2-20x-2,a=7,b=-20,c=-2
abc=7*(-20)*(-2)=280
将一多项式[(17x2-3x+4)-(ax2+bx+c)],除以(5x+6)后,得商式为(2x+1),余式为0.求abc=?
(5x+6)(2x+1)=10x^2+17x+6
(17x2-3x+4)-(10x^2+17x+6)=7x^2-20x-2,a=7,b=-20,c=-2
abc=7*(-20)*(-2)=280