document.write( "Question 304563: What does x equal when
\n" ); document.write( "(5x+5)^1/2-5=3x \n" ); document.write( "

Algebra.Com's Answer #218064 by CharlesG2(834) $\"\"$ $\"About$

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What does x equal when
\n" ); document.write( "(5x+5)^1/2-5=3x\r
\n" ); document.write( "\n" ); document.write( "(5x + 5)^1/2 = 3x + 5 (square both sides)
\n" ); document.write( "5x + 5 = (3x + 5)^2 (use FOIL on right side)
\n" ); document.write( "5x + 5 = (3x)^2 + 2*3*5*x + 25
\n" ); document.write( "5x + 5 = 9x^2 + 30x + 25
\n" ); document.write( "0 = 9x^2 + 25x + 20
\n" ); document.write( "use quadratic formula, a=9, b=25, c=20
\n" ); document.write( " $\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( " $\"x+=+%28-25+%2B-+sqrt%2825%5E2+-+4%2A9%2A20%29%29%2F%282%2A9%29+\"$
\n" ); document.write( " $\"x+=+%28-25+%2B-+sqrt%28625+-+720%29%29%2F18+\"$
\n" ); document.write( " $\"x+=+%28-25+%2B-+sqrt%28-95%29%29%2F18+\"$
\n" ); document.write( " $\"x+=+%28-25%2F18%29+%2B-+sqrt%28-1+%2A+95%29%2F18+\"$
\n" ); document.write( " $\"x+=+%28-25%2F18%29+%2B-+%28sqrt%2895%29%2F18%29i+\"$
\n" ); document.write( " $\"x+=+-1.3889+%2B-+0.5415i+\"$
\n" ); document.write( "rounded to 4 places
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