document.write( "Question 962637: \"Write a quadratic function whose roots are 3 and -6.\"
\n" ); document.write( "We are doing the Zero Product Property. I need help because I don't know how to make a function based on roots. \n" ); document.write( "
Algebra.Com's Answer #588167 by Theo(13342)\"\" \"About 
You can put this solution on YOUR website!
you create a function from the roots as follows:\r
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\n" ); document.write( "\n" ); document.write( "x = 3 is one of the roots.
\n" ); document.write( "x = 3 is an equation.
\n" ); document.write( "you want to convert the equation so that 0 is one one side of it.
\n" ); document.write( "you do that by subtracting 3 from both sides of the equation to get:
\n" ); document.write( "x - 3 = 0
\n" ); document.write( "(x-3) is one of your factors.\r
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\n" ); document.write( "\n" ); document.write( "x = -6 is one of the roots.
\n" ); document.write( "x = -6 is an equation.
\n" ); document.write( "you want to convert the equation so that 0 is on one side of it.
\n" ); document.write( "you do that by adding 6 to both sides of the equation to get:
\n" ); document.write( "x + 6 = 0
\n" ); document.write( "(x+6) is the other one of your factors.\r
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\n" ); document.write( "\n" ); document.write( "you multiply the factors together to get the function.
\n" ); document.write( "(x-3) * (x+6) = x^2 + 6x - 3x - 18
\n" ); document.write( "your function is x^2 + 3x - 18.\r
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