View of /trunk/NationalProblemLibrary/Utah/Intermediate_Algebra/set8_Quadratic_Equations_Functions_and_Inequalities/s8p14.pg

    1 ## Author('Utah ww group')
    2 ## Institution('Univeristy of Utah')
    3 ## DBsubject('Algebra')
    4 ## DBchapter('Equations and Inequalities')
    5 ## DBsection('Quadratic Equations')
    6 ## AuthorText1('Ron Larson and Robert P. Hostetler')
    7 ## TitleText1('Intermediate Algebra')
    8 ## EditionText1('4')
    9 ## Section1(' Quadratic Equations, Functions, and Inequalities ')
   10 ## Problem1('')
   11 
   12 ##KEYWORDS('algebra')
   13 
   14 DOCUMENT();        # This should be the first executable line in the problem.
   15 
   16 loadMacros(
   17 "PG.pl",
   18 "PGbasicmacros.pl",
   19 "PGchoicemacros.pl",
   20 "PGanswermacros.pl",
   21 "PGauxiliaryFunctions.pl"
   22 );
   23 
   24 TEXT(&beginproblem);
   25 
   26 
   27 
   28 
   29 TEXT(EV2(<<EOT));
   30 In the first few problems,
   31 fill in the blanks to make a
   32 \{htmlLink("http://www.math.utah.edu/online/1010/binom/",
   33 "perfect square.")\}
   34 For example, in
   35 \[x^2 + 6x + \underline{\phantom{aaa}} = (x+\underline{\phantom{aaa}})^2 \]
   36 fill in \(9\) and \(3\) since
   37 \[x^2+6x + 9 = (x+3)^2.\]
   38 $BR
   39 \(x^2 + 14x +\) \{ ans_rule(10) \} \( = (x +  \)
   40 EOT
   41 &ANS(num_cmp(49));
   42 TEXT(EV2(<<EOT));
   43 \{ ans_rule(10) \} \()^2\).
   44 EOT
   45 &ANS(num_cmp(7));
   46 
   47 TEXT(EV2(<<EOT));
   48 $BR
   49 \(x^2 - 8x +\) \{ ans_rule(10) \} \( = (x -  \)
   50 EOT
   51 &ANS(num_cmp(16));
   52 TEXT(EV2(<<EOT));
   53 \{ ans_rule(10) \} \()^2\).
   54 EOT
   55 &ANS(num_cmp(4));
   56 
   57 TEXT(EV2(<<EOT));
   58 $BR
   59 \(x^2 - 20x +\) \{ ans_rule(10) \} \( = (x -  \)
   60 EOT
   61 &ANS(num_cmp(100));
   62 TEXT(EV2(<<EOT));
   63 \{ ans_rule(10) \} \()^2\).
   64 EOT
   65 &ANS(num_cmp(10));
   66 
   67 
   68 
   69 
   70 
   71 ENDDOCUMENT();        # This should be the last executable line in the problem.
   72 
   73 
   74 
   75 
   76 
   77 
   78