exam Maths Puzzle Numerical Ability

x/4+2/4= 7/2

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exam Other Question

I have to multiply using the vertical method. Can I get some assistance and somebody to explain how the process is done?

(2r - 3s)( 4r^2 + 6rs + 9s^2)

Thanks. What exactly are binomials and can you give me an example on these?