Question

10.Simplify the following expressions and then find the numerical values for

x = -2.

(i) 3(2x – 4) + x2 + 5​

Answer 1

Answer:

3(2x-4) + x2 + 5

3{2(-2) - 4} + (-2)2 + 5

3{-4 -4} + (-4) + 5

3{-8} + (-4) + 5

-24 - 4 + 5

- 24 + 1

Ans= -23