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# Post a question that is algebra II level, I need a question to work on

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Post a question that is algebra II level, I need a question to work on

by the way, how do you enter an uppercase sigma on the calculator to calculate sums?

Jun 2, 2017

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Solve for x.

ax2 + bx + c = 0

You will need to "complete the square" to get the answer.

I think this is probably algebra II level, but I'm not sure.

Or maybe you've done this already...

Jun 2, 2017
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I was going to ask the exact same question! I almost typed it out and realized that someone beat me to it. :(

TheXSquaredFactor  Jun 2, 2017
edited by Guest  Jun 2, 2017
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Wow really! Hey it's a good thing to know how to do!

hectictar  Jun 2, 2017
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step1:  ax2+bx+c = 0

It takes a while, but you eventually get to the quadratic formula, x=(-b ± sqrt(b2-4ac)/2a

Also, is there a plus/minus button? I just copied the symbol I used off Google.

Jun 2, 2017
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Here's a system for you:

\(-4x+y-2z=-14\)

\(8x-2y+4z=7\)\(2x-4y+z=3\)

.
Jun 2, 2017