Question

by using factor theorem
if p(x)=2+5x then p(2)+p(-2)-p(1)
answer step by step

Answer 1

Heya!
----------

========================================================

♦ p ( x ) => 2 + 5x


◾ p ( 2 )

=> 2 + 5(2)

=> 2 + 10

=> 12


◾p ( -2)

=> 2 + 5 (-2)

=> 2 - 10

=> -8


◾p ( 1)

=> 2 + 5 (1)

=> 2 + 5

=> 7



➡Plugging in Values in p (2) + p (-2) - p (1)

=> 12 + (-8) - 7

=> 12 - 8 - 7

=> 12 - 15

=> -3 ✔

===========================================================

Answer 2

$hey \: mate \: here \: is \: your\:answer...$
________________________________



$p(x) = 2 + 5x$

$on \: putting \: x = 2 \\ p(2) = 2 + 5(2) \\ \: \: \: \: \: \: \: \: \: = 2 + 10 \\ \: \: \: \: \: \: \: \: \: = 12$


$on \: putting \: x = - 2 \\ p( - 2) = 2 + 5( - 2) \\ \: \: \: \: \: \: \: \: \: \: \: \: = 2 - 10 \\ \: \: \: \: \: \: \: \: \: \: \: \: = - 8$



$on \: putting \: x = 1 \\ p(1) = 2 + 5(1) \\ \: \: \: \: \: \: \: \: \: = 2 + 5 \\ \: \: \: \: \: \: \: \: \: = 7$


$now...$
$p(2) + p( - 2) - p(1) = (12) + ( - 8) - (7) \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 12 - 8 - 7 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 12 - 15 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = - 3$

__________________________________


$hope \: it \: helps.........$