Question

Can i get help with 1 and 4 please?

Answer 1

1. 0

4. 6

Explanation:

1. 2 x -1 + 1 ×2 = -2 + 2 = 0

2. 2x - 4 x 3 = 0

or 2x - 12 = 0

or 2x = 12

or x = 6