exam Maths Puzzle Numerical Ability

How do I expand the following to include all stages:
2
(x+2)(x + 7)

Hope you can help me.

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exam Other Question

Prince and Madonna were the top two moneymakers in the 2004 usic industry. Prince earned $1.6 million more than Madonna, and together they earned$111.4 million. What were the earnings of each of these performers in 2004? The sum of a number and its square is 30. Find the number.

I need not only the answer but the method of how it is solved.

This is what I think the method is X + 30= Xsquared