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Maths Puzzle
Numerical Ability
Solve the following nonlinear system for x and y. Sketch a graph, showing the intersection points.
x + y = 7
and
x^2 + y^2 = 25
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book Other Question
p(x)=36x^4-108x^3+245x^2-432x+404 has four complex roots. One of them is x=2i 0 - 2i. The other conjugate complex pair of roots is ____ +- _____i.
Simplify the radicals....
radical sign 40 + radical sign 10 + radical sign 2/5