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Maths Puzzle
Numerical Ability
5/8 + 3/10 - 1/4 = ?
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x^2-9y^2
_________ / (x^2-3xy)
7x^2+21y
This is what I have so far...
(x-3y)(x+3y) over (?) * (times) 1 over (x^2-3xy)
I cant figure out how to factor the denomoniator i
what is the number factorization for 36