SOLUTION: 36x^2+18x+1=0 I need help to solve by completing the square

Question 479425: 36x^2+18x+1=0 I need help to solve by completing the square
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Step 1: Put constant in the RHS:

Step 2: Divide by the lead coefficient:

Step 3: Divide the 1st degree term coefficient by 2, square the result, then add that result to both sides of the equation. Collect terms on the right.

You had better check my arithmetic. It is simply foolish to trust someone you don't know not to make simple arithmetic errors.

Step 4: Factor the perfect square trinomial in the LHS:

Step 5: Take the square root of both sides, remembering to consider both positive and negative roots:

Step 6: Add the opposite of the constant in the LHS to both sides:

Step 7: Apply LCD and add fractions in the RHS:

Step 8: Check your ID. If you were born on or before this date in 1990, go have a beer. Otherwise celebrate in a more age appropriate way.

John

My calculator said it, I believe it, that settles it

The Out Campaign: Scarlet Letter of Atheism

RELATED QUESTIONS
need help solving the equation by completing the square... (answered by usyim88hk,longjonsilver)

I need help about how you do this problem step by step . Solve the equation by... (answered by ankor@dixie-net.com)

Please help me solve 9x^2+25y^2-36x+50y-164=0 I know I have to solve by completing the (answered by lwsshak3)

I need some help I canot find the correct answer for the following problems Solve by... (answered by ankor@dixie-net.com)

x^2+3x=28. I need help to solve this problem by completing the... (answered by lenny460)

Solve by completing the square.... (answered by ankor@dixie-net.com)

I need to solve x^2+6x-16=0 by completing the... (answered by jim_thompson5910)

solve the equation by completing the perfect square. x^2 - 18x + 86 = 0 So far i got... (answered by swincher4391)

Solve by completing the square x^2+18x+80=0 Thank... (answered by jim_thompson5910)