<?php header/("content-type: text/html;charset=utf-8"); $a = 5; $b = 6; $c = 7; $determinant = ($b * $b)- 4 * ($a * $c); if($determinant > 0) { $x1=(-$b + sqrt($determinant))/(2 * $a); $x2=(-$b - sqrt($determinant))/(2 * $a); echo $x1; echo $x2; } else if ($determinant==0){ $x1 = $x2 = (-$b / (2*$a)); } else{ echo "on ne calcule pas ça"; } ?>
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