x^2 / 4 + 4x = 0

Question

x^2 / 4 + 4x = 0

anonymous · Answer

Solve. o-o

mathstudent55 · Answer

$\dfrac{x^2}{4} + 4x = 0$

Multiply both sides by 4 to get rid of teh denominator.

anonymous · Answer

x^2 + 16 = 0 ? .-.

anonymous · Answer

& Sorry for late reply, didn't realize someone answered.

mathstudent55 · Answer

Correct.

$x^2 + 16x = 0$

Now factor out x.

mathstudent55 · Answer

No problem.

mathstudent55 · Answer

No. Sorry.
You are missing x in the second term.
See what  wrote below your last response.

mathstudent55 · Answer

You should have 

$x^2+16x=0$

Now factor out x from both terms on the left side.

anonymous · Answer

Would I subtract 16 or divide or.. @.@. I'm not very good at math, sorry :I.

mathstudent55 · Answer

No. We factor the left side.
We have to change the left side into a multiplication of factors.
Since both terms have an x in common, we factor out x.
It's using the distributive property in reverse.

$x^2 + 16x = 0$

$x(x + 16) = 0$

anonymous · Answer

oH MY GOSH IM SORRY Im distracted by Minecraft :x. Anyway @.@.  I think I've got it from here :3. Thankyou :D I was mostly stuck at the factoring part >-> Anyway. Here's a medal :D

mathstudent55 · Answer

Sorry, my computer slowed down and crashed.

To finish, just solve the two equations and write the word or in between solutions.

$x(x + 16) = 0$

$x = 0$  or  $x + 16 = 0$

$x = 0$  or  $x = -16$

mathstudent55 · Answer

You're welcome.