What is f(x)=2,-x-x^3=0 ?

The solution to f(x)=2,-x-x^3=0 is

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f(x)=2,-x-x^3=0

f (x) = 2, - x - x^{3} = 0

x = 0, x = i, x = - i, f = 2 f = 2 f = 2

Solution steps

[f = 2 - x - x^{3} = 0]

Solve

- x - x^{3} = 0 : x = 0, x = i, x = - i

For

f = 2

, subsitute

x

with

0 : f = 2

For

f = 2

, subsitute

x

with

i : f = 2

For

f = 2

, subsitute

x

with

- i : f = 2

Verify solutions by plugging them into the original equations

Therefore, the final solutions for

f = 2, - x - x^{3} = 0

are

x = 0, x = i, x = - i, f = 2 f = 2 f = 2

3 x^{2} + 3 y^{2} = 7, x^{3} + y^{3} = 3

x^{2} + 3 x + 2 = 0, y^{2} + 7 y + 12 = 0

4 x = 8, x - y = 6

8 x + y = 13, 8 x + y = 13

2 x - y = - 5, 2 x - y = - 3