Find the value of the polynomial 5 x-4 x^2+3 at x=2 - Vidyadip

Question

Find the value of the polynomial $5 x-4 x^2+3$ at $x=2$

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Answer

Let $f(x)=5 x-4 x^2+3$
The value of $f(x)$ at $x=2$
$f(2)=5(2)-4(2)^2+3$
$=10-16+3=-3$

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