SOLUTION: How do you find the term that should be added to the expression to make a perfect square trinomial? x^2 + 11x x^2 + 4/5x how?

Question 141902: How do you find the term that should be added to the expression to make a perfect square trinomial?
x^2 + 11x
x^2 + 4/5x
how?
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
To make the trinomials perfect square trinomials, you must add the square of half the x-coeffecient, as long as the x^2-coefficient is 1.
The -coefficient is 1 so add the square of half the x-coefficient. Add to get:

Check:
=
Likewise for:
Add = to get:

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