Question

Calculate the value of the following algebraic expression:
3х2 + (х – 1)(х+1) + 3(х + 2) + 5 at x=-1.
11
Ооос
o 18​

Answer 1

Step-by-step explanation:

if x = -1

then,  3 x 2 + [ x - 1 ] [ x + 1 ] + 3 [ x + 2 ] + 5 =

3 x 2 + [ -1 -1 ] [ -1 + 1 ] + 3 [ -1 + 2 ] + 5=

6 + [ -2 ] [ 0 ] + 3 + 5 =

6 + 3 + 5 = 14.

hope my answer helps you.

please mark me as a brainliest