document.write( "Question 30375: Question:
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document.write( "Solve:
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document.write( "^3 sqrt x^2-4x+2=^3 sqrt x+2\r
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document.write( "POssible Solutions:
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document.write( "(A) 0, 5
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document.write( "(B) 1/2, 5
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document.write( "(C) 0, 11/2
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document.write( "(D) 1/2, 11/2\r
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document.write( "Please be specific as to which letter answer is correct please
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document.write( "Thanks for your help! \n" );
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Algebra.Com's Answer #17204 by sdmmadam@yahoo.com(530)![]() ![]() ![]() You can put this solution on YOUR website! ^3 sqrt x^2-4x+2=^3 sqrt x+2 \n" ); document.write( "Probably the question is \n" ); document.write( "[sqrt (x^2-4x+2)]^3 = [sqrt (x+2)]^3 ----(1) \n" ); document.write( "This implies \n" ); document.write( "(x^2-4x+2) = (x+2) \n" ); document.write( "x^2-4x-x+2-2 = 0 (grouping like terms) \n" ); document.write( "x^2-5x = 0 \n" ); document.write( "x(x-5) = 0 \n" ); document.write( "x =0 or (x-5)=0 which gives x = 5 \n" ); document.write( "Answer: x = 0 or x = 5 \n" ); document.write( "which is your choice (A)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Let us evolve a model out of this \n" ); document.write( "[sqrt(p)]^3 =[sqrt(q)]^3 \n" ); document.write( "[(p)^(1/2)]^3= [(q)^(1/2)]^3 \n" ); document.write( "[(p)^(3/2)]= [(q)^(3/2)] (using [(a)^m]^n =[(a)^(mn) ——(*)] ) \n" ); document.write( "Now raising both the sides to the power (2/3) \n" ); document.write( "[(p)^(3/2)]^(2/3)= [(q)^(3/2)]^(2/3) \n" ); document.write( "{(p)^[(3/2)X(3/2)]}= {(q)^[(3/2)X(3/2)]} \n" ); document.write( "[(p)^1]= [(q)^1] ((using (*) ) \n" ); document.write( "That is p = q \n" ); document.write( "Note: The above steps if we go through repeatedly then \n" ); document.write( "we will be in a position to just observe and conclude \n" ); document.write( " |