Question

P(x)=x2+4x+3 then p(3) is

Answer 1

$p(x) = {x}^{2} + 4x + 3$

For $p(3)$, all we have to do is substitute $3$ for all values of $x$.

And so we have,

$p(3) = ( {3})^{2} + 4(3) + 3$

$= (3 \times 3) +12 + 3$

$= 9 + 12 + 3$

$= 24$

Hence, $p(3)$ is $\boxed{ 24 }$.