Question

substitute x with -2

Answer 1

Answer:

-105

Step-by-step explanation:

Substituting is like "plug and chug", so we can plug in -2 into the expression and get $(13 - 4(-2))((-2)^2+5(-2)+1)$, which simplifies into 21*-5, or -105. $\blacksquare$

Answer 2

Hello from MrBillDoesMath!

Answer:

-105

Discussion:

(13-4x) (x ^2 + 5x + 1)  =                 =>  substitute x = -2

(13 - 4(-2) ) ( (-2)^2 + 5(-2) + 1 ) =  

(13 + 8) ( 4 -10 + 1)  =                    

(21) ( -5) = - 105

Thank you,

MrB