exam Maths Puzzle Numerical Ability

Solve

5/4x = 3/x - 2

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exam Other Question

I have to completely factor 2abx-14ax-8bx+56x. Can someone help me work this one out.

thanks could someone help me with this?

Which of the following functions is an even function?
1. f(x)=4x-2
2. f(x)=/6x+8/
3. f(x)=3-x^2
4. f(x)=x/x+1