Find the area bounded by the parabolas

  • Thread starter duki
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  • #1
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Homework Statement



find the area bounded by the parabolas [tex]y=2x^2-x-15[/tex] and [tex]y=x^2-4x-5[/tex]

Homework Equations



The Attempt at a Solution



[tex]x^2+3x-10=0[/tex]
I got x = 2 and x = -5; is that right?
If so, why do I keep getting an area of 76.17 when I integrate from -5 to 2? I end up with [tex](2.67+6-20)-(41.67+37.5+50)[/tex]
 

Answers and Replies

  • #2
246
6
Graph the equations and then consider calculating the area by integrating them in three parts and adding up the absolute values of the area.
 

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