book Maths Puzzle Numerical Ability

(IVXI) WHAT DOES THIS MEAN ALSO (VIX) THANKS PLEASE I NEED THIS THANKS AGAIN

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book Other Question

The side of a square, AB and AD, are extended 14cm and 10cm respectively, to form sides AE and AF of a rectangle. If the perimeter of the rectangle is at least twice the perimeter of the square, at most how long is a side of the square? Solve the equation for the indicated variable:

y^2-ay+10by-10ab=0 for y