exam Maths Puzzle Numerical Ability

how do I solve this rational expresion? x^2 + 2x+1 / x+1

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exam Other Question

Find the product: (3x + 5)(4x - 1)

Which of the following is the equation of a vertical line?
x = y
y = -4
y = 3x + 2
x = 8

Simplify: (-3a2b5)2

Find (x - 4)2

Please show how you work the equations? The value of a new $3500 sailboat decreases 10% per year. Find its value after 1 year.