Question

Which expressions are perfect square trinomials? Select all that apply.

a.x^2+8x+12
b.x^2+5x+25/4
c.x^2+14x+29
d.x^2+7x+10.9

Answer 1

a.(x+2)(x+6)

Answer 2

b.(x+5/2)^2

Answer 3

B is a perfect square trinomial. (x+5/2)^2

Answer 4

the rest are not perfect square trinomials

Answer 5

Any ideas @Tara_Kenny16 ?

Answer 6

I was thinking it was c or d

Answer 7

What do you know about perfect square trinomials?

Answer 8

Nothing at the moment..

Answer 9

A perfect square trinomial is an expression with three terms that is a square of a binomial.

Answer 10

That makes sense.

Answer 11

So there are two forms of binomials: a + b and a - b.

$$(a+b)^2 = a^2 +2ab +b^2$$and$$(a-b)^2= a^2 -2ab+b^2$$