Question

Найти значение f (-2),если f(x)=x^3-x+2

Answer 1

F(x)=x³ – x + 2,   f(-2)

f(–2) = (–2)³ – (–2) + 2 = –8 + 2 + 2 = –4

Answer 2

To find the value of f(-2), we need to substitute -2 into the function f(x) and evaluate the expression.

Given that f(x) = x^3 - x + 2, we substitute -2 for x:

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

Calculating this expression, we get:

f(-2) = -8 + 2 + 2 = -8 + 4 = -4

Therefore, the value of f(-2) is -4.