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Maths Puzzle
Numerical Ability
Algebraic expression {{{bx^2-cx+a^2=0}}} the differ by the sign of the square root. what is the one with the plus sign?
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Solve: 7(x - 1) = -14
f(n)=1^2+2^2+3^2+...+n^2 it turns out that f is a polynomial of degree x in n. Figure out the coefficients of f: f(n)=___n^3+___n^2+___n+___.