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num = int(input("Enter a number: ")) if num < 0: print("The number can't be less than 0.") else: div = 1 found_divisor = False while div <= num and not found_divisor: div += 1 if...

To expand is just to multiply out. We will multiply everything inside the bracket by everything inside so it becomes
2a x 4 + 2a x a
Then we use bidmas to get:
8a + 2a^2

Narrative voice is, to put it simply, the perspective from which the story is told. Henry James called this the 'center of consciousness'. Firstly, ask yourself: who is giving voice to the story? Generall...

Remember that you have time to contemplate the question, re and then re-read the extract and get over that initial panic. Breaking the question up and then trying to put it into your own words is a good w...

Step 1) Write out the general equation of a straight line: y = mx + c where m is the gradient and c is where the line intersects the y-axis. Step 2) Find the gradient: m...