document.write( "Question 822221: [ solve these quadratics ]
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document.write( "x^2-8x+16=0
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document.write( "5x^2+20x+21=0 \n" );
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Algebra.Com's Answer #494690 by TimothyLamb(4379)![]() ![]() You can put this solution on YOUR website! --- \n" ); document.write( "x^2 - 8x + 16 = 0 \n" ); document.write( "--- \n" ); document.write( "the above quadratic equation is in standard form, with a=1, b=-8, and c=16 \n" ); document.write( "--- \n" ); document.write( "to solve the quadratic equation, by using the quadratic formula, copy and paste this: \n" ); document.write( "1 -8 16 \n" ); document.write( "into this solver: https://sooeet.com/math/quadratic-equation-solver.php \n" ); document.write( "--- \n" ); document.write( "answer: \n" ); document.write( "this quadratic has real roots, (its two x-intercepts), the roots are: \n" ); document.write( "x = 4 \n" ); document.write( "x = 4 \n" ); document.write( "--- \n" ); document.write( "--- \n" ); document.write( "--- \n" ); document.write( "5x^2 + 20x + 21 = 0 \n" ); document.write( "--- \n" ); document.write( "the above quadratic equation is in standard form, with a=5, b=20, and c=21 \n" ); document.write( "--- \n" ); document.write( "to solve the quadratic equation, by using the quadratic formula, copy and paste this: \n" ); document.write( "5 20 21 \n" ); document.write( "into this solver: https://sooeet.com/math/quadratic-equation-solver.php \n" ); document.write( "--- \n" ); document.write( "answer: \n" ); document.write( "this quadratic has complex roots, (these are NOT x-intercepts), the roots are: \n" ); document.write( "x = -2 + (0.447213595)i \n" ); document.write( "x = -2 - (0.447213595)i \n" ); document.write( "--- \n" ); document.write( "Solve and graph linear equations: \n" ); document.write( "https://sooeet.com/math/linear-equation-solver.php \n" ); document.write( "--- \n" ); document.write( "Solve quadratic equations, quadratic formula: \n" ); document.write( "https://sooeet.com/math/quadratic-formula-solver.php \n" ); document.write( "--- \n" ); document.write( "Solve systems of linear equations up to 6-equations 6-variables: \n" ); document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php \n" ); document.write( " |