Question

$the \: value \: of \: f(x) = 5x - 4x {}^{2} + 3 \: when \: x = - 1$
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Answer 1

Answer:

f(x)=5x−4x

2

+3

x=−1

f(−1)=5(−1)−4(−1)

2

+3

=−5−4+3

=−9+3

=−6

optionc