Tentukan nilai m agar suku banyak x3-(2m-1)x2+7x-3 nilai 0 untuk x=-1

jawab

f(x)= x³ - (2m-1)x ² + 7x - 3

f(-1) = 0
(-1)³ -(2m -1)(-1)² + 7 (-1)  - 3 = 0
-1 - 2m +1 - 7 - 3 = 0
-2m - 10 = 0
-2m = 10
m  = - 5