(x²+px+3)(x²-2x+q)的乘积中含x²项为:(q-2p+3)x²
(x²+px+3)(x²-2x+q)的乘积中含x³项为:(p-2)x³
(x²+px+3)(x²-2x+q)的乘积中不含x²,x³项
即q-2p+3=0
p-2=0
p=2
q-2*2+3=0
q=1
所以p=2,q=1
(x²+px+3)(x²-2x+q)的乘积中含x²项为:(q-2p+3)x²
(x²+px+3)(x²-2x+q)的乘积中含x³项为:(p-2)x³
(x²+px+3)(x²-2x+q)的乘积中不含x²,x³项
即q-2p+3=0
p-2=0
p=2
q-2*2+3=0
q=1
所以p=2,q=1