If $p(x)=x+3,$ then $p(x)+p(-x)$ is equal to
$3$
$2x$
$0$
$6$
We have $p(x)=x+3,$ then
$p(-x)=-x+3$
Therefore, $p(x)+P(-x)=x+3+(-x+3)=x+3-x+3=6$
Hence, $(d)$ is the correct answer.
Evaluate the following products without multiplying directly
$88 \times 86$
Find the value of each of the following polynomials at the indicated value of variables
$p(t)=5 t^{2}-11 t+7$ at $t=a$
Evaluate $(132)^{2}$ by using suitable identities
Factorise $: x^{3}-x^{2}-17 x-15$
Factorise
$16 x^{4}-y^{4}$
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