Question

x³-x²-(2+ √2)x + √2​

Answer 1

x = -1

x^3 - x^2 - (2+ root2)x + root2

(-1)^3 - (-1)^2 - (2 + root2)(-1) + root 2

-1 -1 - (-2 - root2) + root2

-2 + 2 - root2 + root = 0