[npl] / trunk / NationalProblemLibrary / Utah / Intermediate_Algebra / set8_Quadratic_Equations_Functions_and_Inequalities / s8p14.pg Repository: Repository Listing bbplugincoursesdistsnplrochestersystemwww

Sat Feb 7 16:55:50 2009 UTC (4 years, 3 months ago) by jj
File size: 1467 byte(s)
```Fixed NPL tags.
```

```    1 ## Author('Utah ww group')
2 ## Institution('Univeristy of Utah')
3 ## DBsubject('Algebra')
4 ## DBchapter('Equations and Inequalities')
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
17 "PG.pl",
18 "PGbasicmacros.pl",
19 "PGchoicemacros.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
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
```