Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the Margin when the Winning score is +8 (70-69-70-75=284)?

### Inputs:
table_name: table, columns: ['Year', 'Championship', 'Winning score', 'Margin', 'Runner(s)-up']

### Response:
SELECT Margin FROM table WHERE Winning score = +8 (70-69-70-75=284)