document.write( "Question 1113597: Find the value of A and B if (2x)/(x^2+3x-4)=A/(x-1) + B/(x+4)
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Algebra.Com's Answer #728685 by greenestamps(13200)\"\" \"About 
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\n" ); document.write( "\"A%2F%28x-1%29%2BB%2F%28x%2B4%29+=+2x%2F%28x%5E2%2B3x-4%29+=+2x%2F%28%28x-1%29%28x%2B4%29%29\"

\n" ); document.write( "Multiply both sides by the LCM, (x-1)(x+4):

\n" ); document.write( "\"A%28x%2B4%29%2BB%28x-1%29+=+2x%29\"
\n" ); document.write( "\"%28A%2BB%29x+%2B+%284A-B%29+=+2x\"

\n" ); document.write( "Equate the coefficients of the terms on the two sides of the equation:

\n" ); document.write( "\"A%2BB=2\"; \"4A-B=0\"

\n" ); document.write( "Solve the pair of equations.

\n" ); document.write( "(you can do the work...)

\n" ); document.write( "Answer: A=2/5; B=8/5
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