If p(x) = 5x - 4x^2 + 3 then p(-1) = ? - Vidyadip

Question

If $p(x) = 5x - 4x^2 + 3$ then $p(-1) =$ ?

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Answer

$p(x) = 5x - 4x^2 + 3$
Putting $x = -1$ in$ p(x),$ we get
$p(-1) = 5 \times (-1)-4 \times (-1)^2 + 3 = -5 - 4 + 3 = -6$

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