Question

find global Maxima and global minima of f (x) = x^3-12x^2+45x​

Answer 1

Answer:

= x(x²-12x+45)

=x{x²- (15-3)x+45}

= x{x²-15x+3x+45}

=x{x(x-15)-3(x-15)}

=x (x-15) (x-3)