document.write( "Question 603857: -x^2=2x-15 \n" ); document.write( "

Algebra.Com's Answer #380857 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi,
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document.write( "-x^2=2x-15
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document.write( "same as:(Adding x^2 to both sidess of the EQ)
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document.write( "x^2 +2x-15 = 0
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document.write( "factoring
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document.write( "(x+5)(x-3) = 0
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document.write( "(x+5) =0,  x= -5
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document.write( "(x-3) = 0, x = 3\r
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document.write( "May check factoring using the FOIL method
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document.write( "F	First terms    x^2
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document.write( "O	Outside terms  -3x
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document.write( "I	Inside terms   5x
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document.write( "L	Last terms    -15
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