Respuesta :

Part a

p2 – 6p + 9

we know that

p2 – 6p + 9=(p-3)^2

so

the given expression is a square of linear equation

Part b

9x2 – 36=(3x-6)(3x+6)

the given expression is not a square of linear equation

Part c

x2 + 6x + 36

the given expression is not a square of linear equation

Part d

(1/2x+4)^2

he given expression is a square of linear equation