document.write( "Question 174426: c=x+8
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document.write( "b=x
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document.write( "a=x+7
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document.write( "find x
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document.write( "i tried everything i could..i cudnt find any solutions and it drove me crazy...help would be soo appreciated. \n" );
document.write( "
Algebra.Com's Answer #129420 by Electrified_Levi(103)![]() ![]() ![]() You can put this solution on YOUR website! Hi, Hope I can help, \n" ); document.write( ". \n" ); document.write( "If this is a Pythagorean Theorem, this is how you would find \"x\" \n" ); document.write( ". \n" ); document.write( "c=x+8 \n" ); document.write( ". \n" ); document.write( "b=x \n" ); document.write( ". \n" ); document.write( "a=x+7 \n" ); document.write( ". \n" ); document.write( "find x \n" ); document.write( ". \n" ); document.write( "Pythagorean Theorem is \n" ); document.write( ". \n" ); document.write( "Now replace the letters \"a\", \"b\", and \"c\" with what they equal in \"x\" terms \n" ); document.write( ". \n" ); document.write( "Replace \"a\" with (x+7) \n" ); document.write( ". \n" ); document.write( "Replace \"b\" with (x) \n" ); document.write( ". \n" ); document.write( "Replace \"c\" with (x+8) \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "We will solve using the quadratic equation \n" ); document.write( ". \n" ); document.write( "Quadratic equation = \n" ); document.write( ". \n" ); document.write( "Quadratic equations are in the form \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "In our equation \n" ); document.write( ". \n" ); document.write( "a = 1 \n" ); document.write( ". \n" ); document.write( "b = (-2) \n" ); document.write( ". \n" ); document.write( "c = (-15) \n" ); document.write( ". \n" ); document.write( "Now replace these letters with the numbers in the quadratic equation \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "You can check by replacing these numbers into the original quadratic equation \n" ); document.write( ". \n" ); document.write( "(5), \n" ); document.write( ". \n" ); document.write( "(-3), \n" ); document.write( ". \n" ); document.write( "We could have used factoring to solve, but this only works sometimes \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "We could have listed all of the factors of (-15), the two factors would have to equal (-2) \n" ); document.write( ". \n" ); document.write( "We would start like this \n" ); document.write( ". \n" ); document.write( "( x )( x ) \n" ); document.write( ". \n" ); document.write( "(1, -15) ( added = (-14)) \n" ); document.write( ". \n" ); document.write( "( 5, -3) ( added = 2 ) \n" ); document.write( ". \n" ); document.write( "( \n" ); document.write( ". \n" ); document.write( "The factors would then be \n" ); document.write( ". \n" ); document.write( "( x + 3 )( x - 5) = 0 \n" ); document.write( ". \n" ); document.write( "You would then set each factor equal to \"0\" \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "These are our two answers/solutions \n" ); document.write( ". \n" ); document.write( "You can check even further if we replaced \"x\" in our very original equation \n" ); document.write( ". \n" ); document.write( "(5), \n" ); document.write( ". \n" ); document.write( "(-3), \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "Don't be fooled with your two answers, since this is a triangle, your answer cannot be negative ( you cannot have negative sides ), so (-3) is not an answer \n" ); document.write( ". \n" ); document.write( "The only answer that works is \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "Hope I helped, Levi \n" ); document.write( " |