artishaalston
u^2+2u2=0 solve



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bahrom7893
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factor or use the quadratic

artishaalston
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yes

bahrom7893
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I'm telling you to do it lol

artishaalston
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ok well i wouldnt be asking for help if ik what to do


shubham.bagrecha
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DO you know quadratic formula?

artishaalston
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yes but i get confused on where to put my numbers in at

shubham.bagrecha
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\[\Large u=\frac{b \pm \sqrt{b^{2}4ac}}{2a}\]
here
b(coeffi. of u)=2
a(coeffi. of u^2)=1
c = 2
substitute.

artishaalston
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ok u=2+squreroot 2*4*1*2 is this right

shubham.bagrecha
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\[\Large u=\frac{2 \pm \sqrt{2^{2}4(1)(2)}}{2(1)}\]

artishaalston
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ok now idk were to go frm here

artishaalston
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u=2+sqrt2^2+8

artishaalston
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i am sorry this whole thing is very confusing to me