SOLUTION: solve the equation by completing the perfect square. x^2 - 18x + 86 = 0
So far i got this:
x^2 - 18x + 81 = -86 + 81
(x - 9)^2 = -5
Algebra.Com
Question 666812: solve the equation by completing the perfect square. x^2 - 18x + 86 = 0
So far i got this:
x^2 - 18x + 81 = -86 + 81
(x - 9)^2 = -5
Answer by swincher4391(1107) (Show Source): You can put this solution on YOUR website!
You're almost there.
Take the square root of both sides and add 9 to get
or
RELATED QUESTIONS
D..ex
I have no idea on how to do these types of problems
Problem #7
Solve by... (answered by jim_thompson5910)
"Solve the equation"
I want to understand step by step please.
x^2 + 18x + 81 =... (answered by ewatrrr,scott8148)
solve by factoring:... (answered by Alan3354)
Is the following trinomial a perfect square? Explain why or why not.
x^2 – 18x + 81
(answered by rapaljer)
is the following trinomial a perfect square?
x^2+18x+81 (answered by bucky)
Is the following trinomial a perfect square?
x^2 + 18x + 81
(answered by scott8148)
Is the following trinomial a perfect square? why or why not... (answered by josmiceli)
Solve by completing the square.... (answered by ankor@dixie-net.com)
Is the following trinomial a perfect square?
x^2 + 18x + 81
I don't think it is.... (answered by Nate)