Question

The value of f(x) = 5x−4x²+3 when x = -1, is:

Answer 1

Answer:

-6

Step-by-step explanation:

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Answer 2

Answer:

______________

$f(x) = 5x - 4x^{2} + 3$

$f(-1) = 5 × ( -1 ) - 4 × ( -1 )^{2} + 3$

$=5 × ( -1 ) - 4 × 1 + 3$

$= -5 - 4 + 3$

$= -9 + 3$

$= -6$