![\"\"](\"http://www.wiris.com/plugins/demo/fckeditor/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"../../../userfiles/image/steps_images/step1.JPG\")
The equation is ![\"a](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=9c94b7c0bca1b93b322e18e79496e68a.png\")
.
Graph the related function ![\"f](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=1b064b3d37979d6b6f099668799bf343.png\")
![\"\"](\"../../../userfiles/image/steps_images/step2.JPG\")
| \
a \ | \
\
f(a) \ | \
| \
| \
\
| \
| \
| \
\
| \
| \
| \
\
| \
| \
| \
\
| \
| \
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\
| \
| \
| \
\
| \
| \
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\
| \
| \
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\
| \
| \
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\
| \
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\
| \
![\"\"](\"../../../userfiles/image/steps_images/step3.JPG\")
Graph:
\![\"\"](\"/userfiles/image/graph_the_quadratic_equation_a%5E2-12=0.gif\")
![\"\"](\"../../../userfiles/image/steps_images/solution.JPG\")
The a-intercepts are between 3 and 4 and between ![\"minus](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=a71e52aa35eb2cf0b56245738a0fa757.png\")
and ![\"minus](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=4ffabbac98ed1e3cddbb395ea48c85db.png\")
.
So,one root is between 3 and 4 and the other root is between and .
![\"4\"](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=38243d9c4ebdf054387e5fff5dc97ff4.png\")
![\"minus](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=37f7af278cda90efe6940b679da496e1.png\")
![\"minus](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=25a97de312685c6fdabdae0fde12d346.png\")
![\"minus](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=4b345e2460496370855d8b91fb84dd98.png\")
![\"minus](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=0bffeca0a1f1cf9365cec3afafd5c6ff.png\")
![\"0\"](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=932d4aa319707492a47c9ff4295737d8.png\")
![\"minus](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=df356fa4229d94f8e6751096a762b42f.png\")
![\"1\"](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=daec106a920155264360dc6404b243b3.png\")
![\"2\"](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=dd13be30e8420d96a98b1bc60fa5f669.png\")
![\"3\"](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=912fa2ce2372f5bd3c0f16424f838726.png\")
![\"5\"](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=ea7be40307791444b83fa193815a1c30.png\")
![\"13\"](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=fac3f50e5e6bd969df40c5f1f9ca9d96.png\")