document.write( "Question 1123897: Please help me solve this equation by method of completing the square method: 2x^2+13x-15=0 \n" ); document.write( "
Algebra.Com's Answer #740306 by MathTherapy(10552)\"\" \"About 
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Please help me solve this equation by method of completing the square method: 2x^2+13x-15=0
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\"matrix%281%2C3%2C+2x%5E2+%2B+13x+-+15%2C+%22=%22%2C+0%29\"
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document.write( "\"matrix%281%2C3%2C+2%28x%5E2+%2B+%2813%2F2%29x+-+15%2F2%29%2C+%22=%22%2C+2%280%29%29\" --- Dividing by 2 to make the coefficient on the x2, 1
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document.write( "\"matrix%281%2C3%2C+x%5E2+%2B+%2813%2F2%29x+-+15%2F2%2C+%22=%22%2C+0%29\"
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document.write( "\"matrix%281%2C3%2C+x%5E2+%2B+%2813%2F2%29x%2C+%22=%22%2C+15%2F2%29\" ------------- Adding \"15%2F2\" to move constant to right of equals sign
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document.write( " ------ Taking \"1%2F2\" of b, squaring it, and then ADDING the result to both sides of equation
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document.write( "\"matrix%281%2C3%2C+%28x+%2B+13%2F4%29%5E2%2C+%22=%22%2C+120%2F16+%2B+169%2F16%29\"
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document.write( "\"matrix%281%2C3%2C+%28x+%2B+13%2F4%29%5E2%2C+%22=%22%2C+289%2F16%29\"
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document.write( " ------- Taking square root of both sides
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document.write( "\"matrix%281%2C3%2C+x+%2B+%2813%2F4%29%2C+%22=%22%2C+%22+%22%2B-+17%2F4%29\"
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document.write( "\"matrix%281%2C3%2C+x%2C+%22=%22%2C+%22+%22+%2B-+17%2F4+-+13%2F4%29\"
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document.write( " ========> 
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document.write( "ANY other answer is INCORRECT, so SIMPLY IGNORE! \n" );
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