Question

Знайти f(3)+f(1) Якщо f(x)=x^2+x^3

Answer 1

F(x)=x²+x³

f(3)=3²+3³=9+27=36
f(1)=1²+1³=2

f(3)+f(1)=36+2=38

Answer 2

To find the value of f(3) + f(1) when f(x) = x^2 + x^3, we need to substitute the given values of x into the expression for f(x) and then perform the arithmetic.

First, let's calculate f(3): f(3) = 3^2 + 3^3 f(3) = 9 + 27 f(3) = 36

Next, let's calculate f(1): f(1) = 1^2 + 1^3 f(1) = 1 + 1 f(1) = 2

Now, we can find f(3) + f(1): f(3) + f(1) = 36 + 2 f(3) + f(1) = 38

So, f(3) + f(1) = 38.