exam Maths Puzzle Numerical Ability

Find the measure of angle EDF, if angle D=8x, side D=(3x+2), side E=(4x+3), and the perimeter of the triangle=37.

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exam Other Question

i need help to simplify this problem
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4x^2 | x^5y^2
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| 2xy i need to factorize x^2 + 1 /x^2 +2 -2x - 2/x , i need urgent help in this please i did this sum but the answers coming wrong . thanks