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Maths Puzzle
Numerical Ability
what is 8(4u-1)- 12u=11(2u-6)
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The length of a rectangular frame is 8cm more than the width. The area inside the frame is 105 sq cm. Find the width of the frame.
Please help me with this problem:
(x+y)squared - (a-b)squared
I don't know where to begin