Quadratic Formula - How To?

[TiaharaJBennett]

How do I use the quadratic formula for a problem like x²=16?

 

[pka]

How do I use the quadratic formula for a problem like x²=16?

Write it as \(\displaystyle x^2-16=0\) then \(\displaystyle a=1,~b=0,~\&~c=-16\)

 

[TiaharaJBennett]

Write it as \(\displaystyle x^2-16=0\) then \(\displaystyle a=1,~b=0,~\&~c=-16\)

Thank you

 

[HallsofIvy]

I hope you understand that to actually use the quadratic formula to solve \(\displaystyle x^2= 16\) would be foolish!

 

[TiaharaJBennett]

I hope you understand that to actually use the quadratic formula to solve \(\displaystyle x^2= 16\) would be foolish!

Well, this problem is actually in my summer packet. And the instructions said to solve it using the quadratic formula. I've already gotten the answer.