## DESCRIPTION ## Algebra: expanded polynomial ## ENDDESCRIPTION ## KEYWORDS('algebra', 'expanded polynomial') ## DBsubject('WeBWorK') ## DBchapter('WeBWorK Tutorial') ## DBsection('Fort Lewis Tutorial 2011') ## Date('01/30/2011') ## Author('Paul Pearson') ## Institution('Fort Lewis College') ## TitleText1('') ## EditionText1('') ## AuthorText1('') ## Section1('') ## Problem1('') ########################### # Initialization DOCUMENT(); loadMacros( "PGstandard.pl", "MathObjects.pl", "contextLimitedPolynomial.pl", ); TEXT(beginproblem()); ########################### # Setup # # Vertex form # Context("Numeric"); \$h = 3; \$k = 5; \$vertexform = Compute("(x-\$h)^2-\$k"); # # Expanded form # Context("LimitedPolynomial-Strict"); \$b = -2 * \$h; \$c = \$h**2 - \$k; \$expandedform = Formula("x^2 + \$b x + \$c")->reduce(); ########################### # Main text Context()->texStrings; BEGIN_TEXT The quadratic expression \( \$vertexform \) is written in vertex form. Write the expression in expanded form \( ax^2 + bx + c \). \$BR \$BR \{ ans_rule(30) \} END_TEXT Context()->normalStrings; ############################ # Answer evaluation \$showPartialCorrectAnswers = 1; ANS( \$expandedform->cmp() ); ############################ # Solution Context()->texStrings; BEGIN_SOLUTION \${PAR}SOLUTION:\${PAR} Solution explanation goes here. END_SOLUTION Context()->normalStrings; COMMENT('MathObject version.'); ENDDOCUMENT();