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Maths Puzzle
Numerical Ability
Find (a) the discriminant, (b) the number of solutions and (c) the nature of the solutions for 5x^2-7X-4=0
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book Other Question
summation of 1^2+2^2+3^2+......+x^2
Simplify the following. (3x^2+sx+4)(-5x^3-x+3) (3n^5w)^2/(n^3w)^6 (6y-5)^2
9c^7w^-4(-d^2)/15c^3w^6(-d)^2 5m^-3/6^-1m^-2 (7x-5y)(2x+9y)