TO solve the equation below by completing the square, what is your first step?
4x^2 + 16x = 20
Add 8 to each side of the equation
Add 64 to each side of the equation
Multiply both sides of the equation by 1/4
Multiply both sides of the equation by 1/8

Question

TO solve the equation below by completing the square, what is your first step?
4x^2 + 16x = 20 
Add 8 to each side of the equation
Add 64 to each side of the equation
Multiply both sides of the equation by 1/4
Multiply both sides of the equation by 1/8

anonymous · Answer

I think the answer is Add 8 to each side. But im not sure

thesmartone · Answer

Well first thing we could do would be to simplify it.

thesmartone · Answer

4, 16, and 20 are all divisible by 4. So..

anonymous · Answer

So than you'd have x^2 + 4 = 5

tkhunny · Answer

That's right.  And that corresponds to choice #3.

thesmartone · Answer

Exactly :)

anonymous · Answer

Thank You!

thesmartone · Answer

No problem :)