SOLUTION: whats the answer to 5(x+6)^2=80 using the square root method

Algebra.Com
Question 611361: whats the answer to 5(x+6)^2=80 using the square root method
Found 3 solutions by jim_thompson5910, stanbon, ewatrrr:
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!

Start with the given equation.


Divide both sides by .


Reduce.


Take the square root of both sides.


or Break up the "plus/minus" to form two equations.


or Take the square root of to get .


or Subtract from both sides.


or Combine like terms.


--------------------------------------


Answer:


So the solutions are or .
--------------------------------------------------------------------------------------------------------------
If you need more help, email me at jim_thompson5910@hotmail.com

Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you

Jim
--------------------------------------------------------------------------------------------------------------
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
whats the answer to 5(x+6)^2=80 using the square root method
------
(x+6)^2 = 16
---
x+6 = 4 or x+6 = -4
-----
x = -2 or x = -10
=========================
Cheers,
Stan H.
=========================
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
 

Hi, 





    x = -6 ± 4 

   x = -10,-2 

RELATED QUESTIONS


whats the answer to 5(x+6)^2+80 using the square root... (answered by solver91311)

what is the answer to log 3z equal 2 ?
what is the answer to ln x equal 2 ?
whats the... (answered by nerdybill)

Solve using the square root method.... (answered by josgarithmetic)

Solve using the square root method... (answered by josgarithmetic)

whats the answer to the square root of... (answered by Fombitz)

Solve by using the square root method.... (answered by jim_thompson5910)

Solve using the square root method... (answered by josgarithmetic)

whats the answer to 4 over square root of 3
 
 (answered by Alan3354)

find the zeros of the quadratic function using the square root method... (answered by lwsshak3)