Question

Evaluate and simplify
4a - 2(a + b) + 1 = ? a=2 b=4

Answer 1

13

Explanation:

4a-2=4×2-2=6

6(2+4) =6×6+1

Answer 2

-3

Explanation:

4(2)-2(2+4)+1=8-2(6)+1=9-12=-3