SOLUTION: My question states:
x^2+3x+c
Find the value of c that makes the trinomial a perfect square.
I tried several different ways to figure it out and each way was wrong :(
Algebra.Com
Question 1090244: My question states:
x^2+3x+c
Find the value of c that makes the trinomial a perfect square.
I tried several different ways to figure it out and each way was wrong :(
Found 2 solutions by ikleyn, MathLover1:
Answer by ikleyn(52921) (Show Source): You can put this solution on YOUR website!
.
Did you try c = = 2.25 ?
On completing the square see the lessons
- Introduction into Quadratic Equations
- PROOF of quadratic formula by completing the square
- HOW TO complete the square - Learning by examples
in this site.
Also, you have this free of charge online textbook in ALGEBRA-I in this site
- ALGEBRA-I - YOUR ONLINE TEXTBOOK.
The referred lessons are the part of this textbook under the topic "Quadratic equations".
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
recall the rule:
so,
since and
->
then, since we have
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