已知X^2+KM+10=(X+M)*(X+5)则K= ,MKUAI!!!!!!!!!!!!!!

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已知X^2+KM+10=(X+M)*(X+5)则K=,MKUAI!!!!!!!!!!!!!!已知X^2+KM+10=(X+M)*(X+5)则K=,MKUAI!!!!!!!!!!!!!!已知X^2+KM

已知X^2+KM+10=(X+M)*(X+5)则K= ,MKUAI!!!!!!!!!!!!!!
已知X^2+KM+10=(X+M)*(X+5)则K= ,M
KUAI!!!!!!!!!!!!!!

已知X^2+KM+10=(X+M)*(X+5)则K= ,MKUAI!!!!!!!!!!!!!!
(X+M)(X+5)
=X(X+5)+M(X+5)
=X²+5X+MX+5M
=X²+(M+5)X+5M
=X²+KX+10
所以M+5=K
5M=10
M=2
K=M+5=7