book Maths Puzzle Numerical Ability

Please help me to factorize the following:

(x+5)^2 - 4(x+5)

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book Other Question

Write an equation in slope intercept form of the line that passes through (2,-5) with the slope of -2. An inheritance of $900,000 is to be divided among Scott, Alice, and Tricia in the following manner: Alice is to receive 3/4 of what Scott gets, while Tricia gets 1/2 of what Scott