document.write( "Question 564678: I am really struggling with these... Please help.
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document.write( "Multiply:
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document.write( "(9-√5)(3+√5) \r
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document.write( "Multiply and simplify by factoring.
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document.write( "³√y^7 ³√16y^8 \n" );
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Algebra.Com's Answer #365425 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Multiply: \n" ); document.write( "(9-√5)(3+√5) \n" ); document.write( "---- \n" ); document.write( "Use FOIL: \n" ); document.write( "F: 27 \n" ); document.write( "O:9*sqrt(5) \n" ); document.write( "I:-3*sqrt(5) \n" ); document.write( "L: -5 \n" ); document.write( "---- \n" ); document.write( "= 22 + 6sqrt(5) \n" ); document.write( "================================== \n" ); document.write( "Multiply and simplify by factoring. \n" ); document.write( "³√y^7 ³√16y^8 \n" ); document.write( "---- \n" ); document.write( "= [16y^15]^(1/3) \n" ); document.write( "---- \n" ); document.write( "= [8y^15*2]^(1/3) \n" ); document.write( "----- \n" ); document.write( "= 2y^5*cbrt(2) \n" ); document.write( "===================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "====================== \n" ); document.write( " \n" ); document.write( " |