JamicaMajanBalmoresviz
Answered

If x-1 is a factor of f(x)=x³-3x²+mx-4, what is the value of m?

a. 6

b. -6

c. 8

d. 10

Sagot :

JenniferAOIviz
the answer is a.6

P(1) = 1^3 - 3(1)^2  + m(1) - 4
       = 1 - 3  + m - 4
      =  -6 + m
  -m = -6
m = 6