Question

Select the polynomial that is a perfect square trinomial.

49x2 − 8x + 16
4a2 − 10a + 25
25b2 − 5b + 10
16x2 − 8x + 1

Answer 1

please help :(

Answer 2

Have you tried factoring? Or the pythaorgean theorem?

Answer 3

I would, but I struggle with this kind of stuff and I need help to understand it

Answer 4

Ok, for perfect square it has to factor to the form (ax + b)^2, so we can try factoring with the same numbers in each of the binomials.

Answer 5

I chose 7 because 7*7 is 49