Question

Check whether -2 is a zero of x^3-2x^2-5x+6.​

Answer 1

Answer:

-2 is a zero of x³-2x²-5x+6.

Step-by-step explanation:

The given equation is x³-2x²-5x+6.

If -2 is the zero of the equation, x³-2x²-5x+6 then x = -2 will make the equation 0

(-2)³-2(-2)²-5(-2)+6

(-8)-2(4)+10+6

-8-8+16

0

x = -2 is a solution to the equation x³-2x²-5x+6.