(-5-square root -7)^2

Algebra
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(-5 - square root of -7)^2

May 26th, 2015

(-5-sqrt(-7))^2 = 25 + 5sqrt(-7) -7 = 18 + 5sqrt(-7)



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May 26th, 2015

is that 5sqrtoot-7?


i got 10 times the sqr root of -7 ... ?

May 26th, 2015

Yes, the right is 10sqrt(-7). I'm sorry, just did mistake. 

18 + 10sqrt(-7)

May 26th, 2015

it's ok, so is it 18+10SR-7

May 26th, 2015

yes

May 26th, 2015

or 18+10i SR 7 

May 26th, 2015

18+10i SR 7 also can be applied.

May 26th, 2015

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May 26th, 2015
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May 26th, 2015
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