Question

A student is given the problem: x^3+7x+9=0 . Which of the following statements is false?

A.
Completing the square cannot be used to solve the given equation.
B.
Completing the square can only be used to solve a quadratic equation.
C.
Completing the square can be used to solve the given equation.
D.
Completing the square cannot be used because of the x^3

Answer 1

Yes, C is the correct answer.

C. Completing the square can be used to solve the given equation.

Explanation: