Question

simplify the expression and the find the value if X=-2
3(2x-4)+x2+5​

Answer 1

Answer:

$3(2x - 4) + x2 + 5 \\ 3(2 \times - 2 - 4) + ( - 2 \times 2) + 5$

$3( - 4 - 4) + ( - 4 + 5)$

$3 \times (- 8) + 1$

$- 24 + 1$

$- 23$