36x exponent 2 -24x+16?

to first answerer: it's obvious you factor it.

4(9x^2-6x+4)

(^ means to the power of, or exponent: 9x^2 means 9x squared)

What is to be done with it my dear? soak it, bake it, boil it, roast it, fry it, squeeze it, dry it ? What is to be done? For heaven's sake be careful before you post your question!!!

(a+b)^2=a^2+2ab+b^2
36x^2 - 24x + 4= (6x-2)^2

36x^2 - 24x + 16
= 4(9x^2 - 6x + 4)