document.write( "Question 48266This question is from textbook College Algebra
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document.write( ": Find all solutions of the system of equations:
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document.write( "x^4 - y^3 = 17
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document.write( "3x^4 + 5y^3 = 53\r
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document.write( "I'm getting weird radical answers that just can't be right.\r
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document.write( "Thank you so much! \n" );
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Algebra.Com's Answer #32024 by Nate(3500)![]() ![]() ![]() You can put this solution on YOUR website! x^4 - y^3 = 17 can be expressed as: x^4 = y^3 + 17 \n" ); document.write( "Plug: 3x^4 + 5y^3 = 53 \n" ); document.write( "3(y^3 + 17) + 5y^3 = 53 \n" ); document.write( "3y^3 + 51 + 5y^3 = 53 \n" ); document.write( "8y^3 = 2 \n" ); document.write( "y^3 = 1/4 \n" ); document.write( "y = 4^(2/3)/4 \n" ); document.write( "Plug: \n" ); document.write( "x^4 - y^3 = 17 \n" ); document.write( "x^4 - (4^(2/3)/4)^3 = 17 \n" ); document.write( "x^4 - 1/4 = 68/4 \n" ); document.write( "x^4 = 67/4 \n" ); document.write( "x = +- 67^(1/4)4^(3/4)/4 \n" ); document.write( "P(67^(1/4)4^(3/4)/4,4^(2/3)/4) and P(-67^(1/4)4^(3/4)/4,4^(2/3)/4) \n" ); document.write( " |