已知二次三项式2x^2+bx+c=2(x-3)(x-1),则b=_____,c=_____.

问题描述:

已知二次三项式2x^2+bx+c=2(x-3)(x-1),则b=_____,c=_____.

2x^2+bx+c
=2(x-3)(x-1)
=2(x^2-4x+3)
=2x^2-8x+6
b=-8,c=6