Question

Which polynomial is a perfect square trinomial?

25x2 − 20x − 16

9a2 − 30a − 25

25b2 − 15b + 9

16x2 − 24x + 9

Answer 1

last one

Answer 2

explain please?

Answer 3

Jimmy's right(as always)
16x^2-24x+9=(4x-3)^2

Answer 4

16x2 − 24x + 9 = (4x -3)(4x-3)

Answer 5

ty

Answer 6

(a^2 -2ab +b^2) = (a-b)^2
a^2 and b^2 must be perfect squares
middle term must be double the product of the roots a,b

Answer 7

oh angela! - you cant have seen all my answers!!

Answer 8

well...ur right at least 99% of the answers i've seen :)