Question

What can you add to x^2 - 22 to make it a perfect square trinomial

Answer 1

anyone

Answer 2

Do you type this correctly? There is no real number that you can square to to get a negative 22.

So if you typed the question correctly you would have to use an imaginary number and square it to get -22. So the middle term would be 2xi*22^(1/2)

Answer 3

You previous post shows X^2-22x

(x+b)^2 = x^2 +2bx+b^2

So you need to find what b^2 equals.

But you know the second term is -22x, so from that you can find the value of b and then just square to find your third term.