Question

Check all polynomials that are perfect square trinomials:

9x2 − 6x + 1

36b2 − 24b + 8

16x2 + 24x + 9

4a2 − 10a + 25

Answer 1

all but 2nd?

Answer 2

does 9x2 mean \[9x ^{2}\] ?

Answer 3

9x2-6x+1=(3x-1)^2
36b^2-24b-8= i dont even want to do it
16x2+24x+9=(4x+3)^2
4a2-10a+25=(2a-5)^2

Answer 4

and yes it does usually