Question

Check all polynomials that are perfect square trinomials:

9x2 − 6x + 1

36b2 − 24b + 8

16x2 + 24x + 9

4a2 − 10a + 25

Answer 1

try factoring them

Answer 2

THINK 1 AND 3 ARE

Answer 3

yes - so do i
it can't be number 2 because 8 is not a square
and number 4 is prime

Answer 4

no 1 = (3x - 1)^2
no 3 = (4x + 3)^2