Question

2(-3x+5)+2(x+4) when x=2

Answer 1

Answer = 10
x= 2
2(-3(2)+5)+2(2+4)
2(-6+5)+2(6)
2 x (-1) + 2 x 6
2(-1+6)
2 x 5
10

Answer 2

12

Explanation:

p(x) = 2(-3x+5)+2(x+4)

Substitution :

p(2) = 2(-3(2) +5) + 2(2+5)
= 2(-6 + 5) + 2 (7)
= 2(-1) + 2(7)
= -2 + 14
= 12