document.write( "Question 64326: Could someone help please!\r
\n" ); document.write( "\n" ); document.write( "1.) If x^2-16=3 then x must approximately be ? (This is all under the radial sign)\r
\n" ); document.write( "\n" ); document.write( "2.) If (5x-2)^2=6 then the solution set for x must be ?\r
\n" ); document.write( "\n" ); document.write( "3.) What expression is equivalent to 27^-3/2\r
\n" ); document.write( "\n" ); document.write( "4.) What is the domain of the function f(x)=1/(x-1)^2+3 \n" ); document.write( "
Algebra.Com's Answer #44978 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
1.) If x^2-16=3 then x must approximately be ? (This is all under the radial sign)
\n" ); document.write( "What is under the radical?
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\n" ); document.write( "2.) If (5x-2)^2=6 then the solution set for x must be ?
\n" ); document.write( "Take the square root of both sides to get:
\n" ); document.write( "5x-2=sqrt6 or 5x-2=-sqrt6
\n" ); document.write( "x=(2+sqrt6)/5 or x=(2-sqrt6)/5
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\n" ); document.write( "3.) What expression is equivalent to 27^-3/2
\n" ); document.write( "Comment: -3/2 is the exponent.
\n" ); document.write( "the - means \"invert\"
\n" ); document.write( "the 3 means \"cube\"
\n" ); document.write( "the 2 means \"sqrt root\"
\n" ); document.write( "You may do these in any order.
\n" ); document.write( "-1/sqrt(27^3)
\n" ); document.write( "4.) What is the domain of the function f(x)=1/(x-1)^2+3
\n" ); document.write( "Since (x-1) is in the denominator, x cannot be 1.
\n" ); document.write( "Domain: All real numbers except x=1.
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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