document.write( "Question 771745: I need help trying to solve this equation. The equation is t^2+81=0
\n" ); document.write( "would this be a quadratic function problem or would this be like solving a normal equation?
\n" ); document.write( "If i solve it like a normal equation i keep on getting a negative under the square root sign.
\n" ); document.write( "how would i write the answer?
\n" ); document.write( "square root of -81 or square root -27 or square root +/- 27 or 81 or with the -81i \n" ); document.write( "

Algebra.Com's Answer #470422 by DrBeeee(684) $\"\"$ $\"About$

You can put this solution on YOUR website!
Given:
\n" ); document.write( "(1) $\"+x%5E2+%2B+81+=+0\"$ or
\n" ); document.write( "(2) $\"x%5E2+=+-81\"$
\n" ); document.write( "Now take the square root of both sides and get
\n" ); document.write( "(3) $\"x+=+sqrt%28-81%29\"$ which is has two complex roots
\n" ); document.write( "(4) x = {-9i,9i} \n" ); document.write( "

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