Respuesta :
none of the above
Step-by-step explanation:
- 36x²-4x+16 = (6x)²- 2*2*x+ 4² this isn't a perfect square trinomial
- 16x²-8x+36 = (4x)² - 2*4*x+6² this isn't a perfect square trinomial
- 25x²+9x+4= (5x)²+2* 9/2 *x+ 2² this isn't a perfect trinomial
- 4x²+20x+25 = (2x)² + 5*4*x+5² this isn't a perfect trinomial square