SOLUTION: Determine the constant that must be added to the given expression to complete the square and express the resulting trinomial as the square of a binomial 1. c�-4c 2. b�+4/3b

Question 134394: Determine the constant that must be added to the given expression to complete the square and express the resulting trinomial as the square of a binomial
1. c�-4c
2. b�+4/3b

Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
# 1

Take half of the "c" coefficient to get -2. In other words,

Now square the result to get 4. In other words,

So you must add 4 to the expression to get

So the expression is now a perfect square

# 2

Take half of the "b" coefficient to get or . In other words,

Now square the result to get . In other words,

So you must add to the expression to get

So the expression is now a perfect square

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