book
Maths Puzzle
Numerical Ability
simplify the following algebraic expression
Multiply: (2s +5z)^2(s + 3z)^2
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book Other Question
solve the equation below for y in terms of x
4x+3y=15
Solve the following inequalities:
a) x^3 < 8
b) x^3-x^2-9x+9 > 0
c) 2x^2-3x+1 / x+1 >0