exam Maths Puzzle Numerical Ability

2 2
(x+y) + (x+3y) - 10(x+3y) - 4(x+y) +29 = 0 , find the value from next expresion

2
2y + xy

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exam Other Question

Emily�s long- distance phone company charges 9 cents for each minute or any part of a minute. She wants to call her friend but does not want to spend more than $2.50 on the call. H Find all real solutions to the equation.

square root x+4 - 2square root x-1 = -1