Question

FIND THE VALUE OF THE FOLLOWING EXPRESSION x= -1

[1] 2X - 7
[2] X THE THE POWER OF 2 + 2X + 1

Answer 1

$2x-7\\ =2(-1)-7 \\ = -2-7 \\ =-9$

${x}^{2 + 2( - 1) + 1}\\{(-1)}^{2-2+ 1}\\= {(-1)}^{1}\\= -1$