Question

The polynomial equation x3 - 4x²+2x+10 - 42 -5x-3 has complex roots 3 + 21. What is the other root? Use a graphing

calculator and a system of equations.
O-3
O-1
O 3
O 10

Answer 1

9514 1404 393

Answer:

B. -1

Explanation:

The graphing calculator shows the left-side function intersects the right-side function at x = -1.