Answer:
Explanation:
Multiply and simplify:
- (x - 1)(x + 2)(x + 3) =
- (x² + 2x - x -2)(x + 3) =
- (x² + x - 2)(x + 3) =
- x³ + 3x² + x² + 3x - 2x - 6 =
- x³ + 4x² + x - 6
From the final polynomial we can see that:
- a = 1, b = 4, c = 1 and d = - 6
So all the coefficients are positive but the constant d is negative