Question

Rewrite the function by completing the square. h(x)= 4 x^{2} -36 x +81

Answer 1

4(x-4.5)^2

Explanation:

h(x)=4x^2-36x+81

=4(x^2-9x)+81

=4(x^2-9x+20.25)-(4)(20.25)+81

=4(x-4.5)^2