SOLUTION: Solve the following problems by defining the variable, writing a quadratic equation, solving it and then providing a written conclusion: - Four more than the square root of twi

Algebra.Com
Question 247739: Solve the following problems by defining the variable, writing a quadratic equation, solving it and then providing a written conclusion:
- Four more than the square root of twice a number is equal to 12. What is the number?

Answer by richwmiller(17219)   (Show Source): You can put this solution on YOUR website!
let x=the number
4+sqrt(2x)=12
subtract 4 from both sides
sqrt(2x)=8
square both sides
2x=64
divide both sides by 2
x=32
I leave the conclusion for you.

RELATED QUESTIONS

Solve the following problems by defining the variable, writing a quadratic equation,... (answered by stanbon)
Solve the following problems by defining the variable, writing a quadratic equation,... (answered by Alan3354)
Help me solve by defining a variable, writing an equation, and solving A 10-foot... (answered by nerdybill)
Solve the problem by defining a variable, writing an equation, and solving the equation.... (answered by Fombitz)
Defining a variable, and writing an algebraic equation. What is the total cost of buying... (answered by checkley77)
Please help me solve this equation. It says to define a variable, write an equation and... (answered by KMST)
Alexis paid $20,700 as a down payment for her new home. If the down payment was 11.5% of... (answered by ikleyn)
Could you please help me by providing a step-by-step answer to the following equation: A (answered by robertb)
Hi thank you for aking the time to helpme with this, I have a writingassignment and I... (answered by ankor@dixie-net.com)