exam Maths Puzzle Numerical Ability

I need help in finding the solutions to x^2+2(pie)=0.

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exam Other Question

find three consecutive integers such that 3 times the sqaure of the first exceeds the product of the other two by 25 Multiply the following fraction.

2x^2 - x -3 / 3x^2 + 7x + 4 * 3x^2 - 11x - 20 / 4x^2 - 9