".$variable.""; $a = chooseSign()*chooseNumber($max); $b = chooseSign()*chooseNumber($max); $c = chooseSign()*chooseNumber($max); $d = chooseSign()*chooseNumber($max); $e = chooseSign()*chooseNumber(3); $f = chooseSign()*chooseNumber($max); $g = chooseSign()*chooseNumber($max); $h = chooseSign()*chooseNumber(3); $cf1 = ($a*$c*$e); $cf2 = ($a*$d*$e+$b*$c*$e); $cf3 = ($b*$d*$e); $cf4 = ($a*$f*$h); $cf5 = ($a*$g*$h+$b*$f*$h); $cf6 = ($b*$g*$h); //create numerator $numerator = $cf1.$varHere."2"; if($cf2 != 0) $numerator .= chooseSymbol($cf2).$varHere; if($cf3 != 0) $numerator .= chooseSymbol($cf3); //create denominator $denominator = $cf3.$varHere."2"; if($cf4 != 0) $denominator .= chooseSymbol($cf4).$varHere; if($cf5 != 0) $denominator .= chooseSymbol($cf5); //$num_ans = $e."(".$a.$varHere." + ".$b.")(".$c.$varHere." + ".$d.")"; //$den_ans = $h."(".$a.$varHere." + ".$b.")(".$f.$varHere." + ".$g.")"; ?>
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