SOLUTION: Solve 7x^2+28x=49 by completing the square. I know you use the formula (b/2)^2 right?

Question 243530: Solve 7x^2+28x=49 by completing the square. I know you use the formula (b/2)^2 right?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given equation.

Factor out the GCF 7 from the left side.

Divide both sides by 7.

Reduce

Take half of the 'x' coefficient and square it to get 4. Add this number to both sides.

Factor the left side and combine like terms on the right.

Take the square root of both sides.

Subtract 2 from both sides to isolate 'x'.

So the solutions are or
RELATED QUESTIONS
Solve the quadratic equation by completing the square.... (answered by KMST)

Hi I need help in understanding one of the steps in "completing the square" for a... (answered by nabla,solver91311)

How do I solve this by using the square root property? 4x^2 - 28x + 49 =... (answered by jsmallt9)

Solve by completing the square : -7x = 5 - x^2 (answered by ankor@dixie-net.com)

solve by completing the square... (answered by nerdybill)

solve by completing the square:... (answered by stanbon)

Solve by completing the square.... (answered by ewatrrr)

How would you solve the following equation by completing the square?... (answered by stanbon)

SOLVE BY COMPETING THE SQUARE: x^2-6x+12=0 PLEASE HELP... I KNOW HOW TO USE THE... (answered by checkley77)