Tìm giá trị m biết f(x)=m^2-2x+8 có nghiệm là -1

Shadid asked Aug 23, 2022

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Shadid asked Aug 23, 2022

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19 votes

Answer:

Explanation:

Thay x= -1 vào ta có:

f(-1)=m²-2(-1)+8=0

<=> m²= 10

<=> m= √10

m= -√10

Vậy m =.......

No Surprises answered Aug 27, 2022

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