Which polynomial is a perfect square trinomial?

A) 9x^2-12x+4

Step-by-step explanation:

to find out whether an equation is a perfect square when we take the square root of "a" and the square root of "c" and double their sum. The result should be the middle term, -12

so

square root of 9; 3

square root of 4: 2

2((3*-2))=-12

now we can take the square root of 9x^2(which is 3x) and the square root of 4(-2) and put it in a expression like this

(3x-2)^2

hope this helps!

step-by-step explanation:

a reflection across the x-axis , followed by the by a reflection across the y-axis , and then a scale dilation of 0.5 .