document.write( "Question 125580: what is the cube root of x+2 =6\r
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\n" ); document.write( "\n" ); document.write( "what is the 5th power of x^2 -13 =1\r
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\n" ); document.write( "\n" ); document.write( "what is the sq.root of 2x + 5 - the sq. root of x-2 = 3\r
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Algebra.Com's Answer #91992 by stanbon(75887)\"\" \"About 
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what is the cube root of x+2 =6
\n" ); document.write( "cube both sides to get x+2 = 216
\n" ); document.write( "x = 214
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\n" ); document.write( "\n" ); document.write( "what is the 5th power of x^2 -13 =1
\n" ); document.write( "Take the 5th root of both sides to get:
\n" ); document.write( "x^2-13 = 1
\n" ); document.write( "x^2 = 14
\n" ); document.write( "x = sqrt(14) or x=-sqrt(14)
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\n" ); document.write( "\n" ); document.write( "what is the sq.root of 2x + 5 - the sq. root of x-2 = 3
\n" ); document.write( "sqrt(2x+5) - sqrt(x-2) = 3
\n" ); document.write( "Square both sides to get:
\n" ); document.write( "(2x+5)+(x-2)-2sqrt(2x^2+x-10) = 9
\n" ); document.write( "2sqrt(2x^2+x-10) = 3x-6
\n" ); document.write( "Square both sides to get:
\n" ); document.write( "4(2x^2+x-10) = 9x^2-36x+36
\n" ); document.write( "x^2-40x+76 = 0
\n" ); document.write( "(x-2)(x-38)=0
\n" ); document.write( "x = 2 or x=38
\n" ); document.write( "Both answers check
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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