Answer:
0.36 + 2.4x + 4x^2
Explanation:
trinomial means in the format ax^2+bx+c
so in this case we just multiple
(0.6+2x)(0.6+2x) use FOIL (First Outer Inner Last
First: 0.6*0.6 = 0.36
Outer: 0.6*2x = 1.2x
Inner: 2x*0.6 = 1.2x
Last: 2x*2x = 4x^2
put them together 0.36+1.2x+1.2x+4x^2
simplify like terms 0.36+2.4x+4x^2
Hope this helps! :)