exam Maths Puzzle Numerical Ability

I am haveing trouble with multiplying binomials using the FOIL method and useing squares, is there an easyer way to do this and how do I do squares?

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exam Other Question

solve
49x^2-4
Show the steps that you would take to solve the following algebraically:

A) 5-2/x-6=10-2x/x-6

B) What potential solution did you obtain? Explain why this is not a solution.