Question

If f(x) = x3 – 4x + 1, then the value of f(2) + f(–2)

is____.​

Answer 1

Given that,

$f(x)=x^3-4x+1$

To find,

The values of f(2) + f(–2).

Solution,

The given function is :

$f(x)=x^3-4x+1$

Firstly lets find f(2), so

$f(2)=(2)^3-4(2)+1=1$

Now let's find f(-2). So

$f(-2)=(-2)^3-4(-2)+1=1$

Now taking the sum of f(2) and f(-2). So,

f(2) + f(-2) = 1 + 1

So,

f(2) + f(-2) = 2