Question

Simplify the following expressions and then find the numerical values for x = -2.
(i) 3(2x – 4) + x2+ 5
(ii) -2(-3x + 5) – 2(x + 4)

Answer 1

Step-by-step explanation:

1) 3( 2×(-2)-4) +(-2)^2+5

3 (-4-4) +4+5

3(-8)+9

-24+9

-15 answer