document.write( "Question 1006490: 63-7a^2/a^3-9a\r
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document.write( "A) -7/a+3 B) -7(9-a^2)/a(a^2-9) C)-7/a-3 D)-7/a \n" );
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Algebra.Com's Answer #622632 by Ani_g(8)![]() ![]() ![]() You can put this solution on YOUR website! (63-7a^2)/(a^3-9a) = {7(9-a^2)}/{a(a^2-9)} = {7(3^2-a^2)}/{a(a^2-3^2)} = (7(3-a)(3+a)}/{a(a+3)(a-3)} = {-7(a-3)(a+3)}/{a(a-3)(a+3)} = -7/a\r \n" ); document.write( "\n" ); document.write( "Ans. D) -7/a \n" ); document.write( " |