document.write( "Question 564678: I am really struggling with these... Please help.
\n" ); document.write( "Multiply:
\n" ); document.write( "(9-√5)(3+√5) \r
\n" ); document.write( "\n" ); document.write( "Multiply and simplify by factoring.
\n" ); document.write( "³√y^7 ³√16y^8
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Algebra.Com's Answer #365425 by stanbon(75887)\"\" \"About 
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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
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\n" ); document.write( "= 22 + 6sqrt(5)
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\n" ); document.write( "Multiply and simplify by factoring.
\n" ); document.write( "³√y^7 ³√16y^8
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\n" ); document.write( "= [16y^15]^(1/3)
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\n" ); document.write( "= [8y^15*2]^(1/3)
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\n" ); document.write( "= 2y^5*cbrt(2)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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