SOLUTION: Find the perfect square trinomial whose first two terms are given. x square + 8x

Question 122841This question is from textbook college algebra
: Find the perfect square trinomial whose first two terms are given.
x square + 8x This question is from textbook college algebra

Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
This is the way you complete the square.
:
The rules is divide the coefficient of x by 2, then square that value
That give you the 3rd term in a perfect square:
:
x^2 + 8x + ____
:
In this problem the coefficient of x is 8
Divide by 2, results in 4
Square 4; results is 16
We have:
x^2 + 8x + 16
If you factor
(x+4)(x+4); FOIL this and you get the equation above, right?
or
(x+4)^2
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