document.write( "Question 259996: solve 3x^2-7x-13=0find x-intercepts of f(x)=3x^2-7x-13 what are the solutions x= what are the x-intercepts (ordered pair \n" ); document.write( "

Algebra.Com's Answer #191443 by checkley77(12844) $\"\"$ $\"About$

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f(x)=3x^2-7x-13
\n" ); document.write( " $\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( "x=(7+-sqrt[-7^2-4*3*-13])/2*3
\n" ); document.write( "x=(7+-sqrt49+156])/6
\n" ); document.write( "x=(7+-sqrt205)/6
\n" ); document.write( "x=(7+-14.32)/6
\n" ); document.write( "x=(7+14.32)/6
\n" ); document.write( "x=21.32/6
\n" ); document.write( "x=3.55 ans.
\n" ); document.write( "x=(7-14.32)/6
\n" ); document.write( "x=-7.32/6
\n" ); document.write( "x=-1.22 ans.
\n" ); document.write( " $\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-18%2C+10%2C+3x%5E2+-7x+-13%29+\"$ (graph 300x200 pixels, x from -6 to 5, y from -18 to 10, 3x^2 -7x -13).
\n" ); document.write( "[The 2 x intercepts are (-1.22,0) & (3.55,0)] \n" ); document.write( "

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