X to the power of 2=196 please explain

Question

tkhunny · Answer

Explain what?  Solve like any other quadratic equation.

anonymous · Answer

X to the power of 2=196

anonymous · Answer

It says find the equation for x

tkhunny · Answer

That makes no sense.  You are given the equation.  Perhaps find the solutions?

anonymous · Answer

Idk this is tooooo confusing

tkhunny · Answer

It's just a quadratic equation.  Have you solved any of those?

anonymous · Answer

?????? Please help I put a pic of it

anonymous · Answer

And no

tkhunny · Answer

Yup.  Solve the equation for x. You are given the equation.  Your task is to find a value for x that satisfies the equation.

1^2 = 1
2^2 = 4
3^2 = 9
4^2 = 16
5^2 = 25
6^2 = 36
...
10^2 = 100
...
15^2 = 225

Are we getting close?

anonymous · Answer

Umm ain't 225 higher then 196

tkhunny · Answer

Exactly.  So,I must have missed it.  Can you find the right value?

anonymous · Answer

Ohh so it would be 14 to the power of 2 right

tkhunny · Answer

Done. Move on to the next one.

anonymous · Answer

Oh ok that all I have to do

unklerhaukus · Answer

what about the other solution?

unklerhaukus · Answer

$$x^2=196\
x\times x = 196\
x = \pm\sqrt{196}$$

tkhunny · Answer

It seemed to me that we were not worried about that other solution, based on the visual observation of the problem statement.  We certainly aren't going to expect a student at this level to find all three solutions to the next problem.