Question

If f(x) = x2 – x, find the value of f(-1)

Answer 1

Step-by-step explanation:

$f(x) = x^{2} - x$

$let$

$f( - 1) = \: ( - 1) {}^{2} - ( - 1)$

$f(x) = 1 + 1$

$therefore \\ \\ \: \: f( - 1) \: = 2$

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