book Maths Puzzle Numerical Ability

I am totally lost on this. Please help!

Write the first 5 terms of the sequence a(n)=n^2+1

Thanks in advance

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book Other Question

How does one find the particular equation of a quadratic function that passes throught the points (1,4), (-3,32), and (4,25)? How can I solve the following problem?

7*root3(48x^4y^8) / root(3,6y^2)

Please explain law of exponents>

Thank you in advance,

Ivelisse