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Maths Puzzle
Numerical Ability
let f(X)= 5xsq-2x
find a(t+3)
find the domain of f(X)= sq root 5x-4
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I have 2 problems i need help with,and if you could break it down so i can understand how to solve these.
1:Solve by factoring,
x^2 - 9x = -20
2: Solve by completing the square,
x^2 + 8x + 13 = 0
Thank you
For the Function f(x)=x^3-12x
Its Local Maximum is the point ( , );
Its Local Minimum is the point ( , ).