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Maths Puzzle
Numerical Ability
find all the roots of each equation.
x^4+4x^3+6x^2+8x+8=0
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Can someone please help me figure this out. I am really confused
A sailboat travels 20 miles downstream in 3 hours. It returns in 4 hours. Find the speed of the sailboat in s
3x-2y=11
-x+6y=7