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document.write( "Which equation, in axsquared + bx + c form, has the roots 5 - 2i and 5 + 2i. thanks. \r
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Algebra.Com's Answer #154794 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Which equation, in axsquared + bx + c form, has the roots 5 - 2i and 5 + 2i. \n" ); document.write( ": \n" ); document.write( "x = 5 +/- 2i \n" ); document.write( "Subtract 5 from both sides: \n" ); document.write( "x - 5 = +/- (2i) \n" ); document.write( "Square both sides \n" ); document.write( "(x - 5)^2 = 4(i^2) \n" ); document.write( "FOIL the left, i^2 = -1 \n" ); document.write( "x^2 - 10x + 25 = 4(-1) \n" ); document.write( ": \n" ); document.write( "x^2 - 10x + 25 = -4 \n" ); document.write( ": \n" ); document.write( "x^2 - 10x + 25 + 4 = 0 \n" ); document.write( ": \n" ); document.write( "x^2 - 10x + 29 = 0 \n" ); document.write( " |