Question

Which of the following constants can be added to x2 - x to form a perfect square trinomial? a)1/2 b)1/4 c) 1

Answer 1

divide coefficient of x by 2 and square it

Answer 2

coefficient of x = -1 ( -x)

Answer 3

what is a perfect square trinomial'

Answer 4

a trinomial whose factors are equal

eg (x + 1)(x + 1) = x^2 + 2x + 1 <----- perfect square trinomial

Answer 5

ooh, okay, thanks

Answer 6

its called a trinomial because it has 3 terms

Answer 7

so can you answer the question?

Answer 8

it's 1, right?

Answer 9

no , i'm talking about
x^2 - x

divide -1 by 2 gives -1/2

now square -1/2

(-1/2) * (-1/2) = ?