Question

Given the function f(x) = x² + 3x:
Solve f(x) = 10.​

Answer 1

f(10) = 130

Explanation:

f(x) = x² + 3x f(x) = 10.

f(10) = 10^2 + 3(10)

f(10) = 100 + 30

f(10) = 130