document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=543362>Question 543362</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Are any of these wrong? I've done the work, I would just like to know which ones are wrong please and thank you.\r<BR>\n" );
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document.write( "1. Simplify the following expression, and rewrite it in an equivalent form with positive exponents.<BR>\n" );
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document.write( "Answer: x^7 over y^5\r<BR>\n" );
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document.write( "2. Raise the quantity in parentheses to the indicated exponent, and simplify the resulting expression.<BR>\n" );
document.write( "(-5x3y)2<BR>\n" );
document.write( "Answer: 25x6y2<BR>\n" );
document.write( "       \r<BR>\n" );
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document.write( "3. Short Answer: Simplify the following expression, and rewrite it in an equivalent form with positive exponents.(4x-2)-2<BR>\n" );
document.write( "Solving: 4x*-2= -8x and -2*-2=4<BR>\n" );
document.write( "Answer: -8x+4\r<BR>\n" );
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document.write( "4. Multiply the expressions, and simplify.<BR>\n" );
document.write( "(x-2y3) • (2x4y-2)<BR>\n" );
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document.write( "Answer:2x-6y5\r<BR>\n" );
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document.write( "5. Short Answer: Convert this number to scientific notation:<BR>\n" );
document.write( "64,000,000  <BR>\n" );
document.write( "Solving: 64,000,000 divided by 10^7= 6.4   <BR>\n" );
document.write( "Answer: 6.4*10^7\r<BR>\n" );
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document.write( "6. Use scientific notation to divide the following two numbers. Express the answer using scientific notation; retain at least three decimal places.<BR>\n" );
document.write( "(8.7 • 109) / (3.22 • 102) <BR>\n" );
document.write( "Solving:(8.7/3.22)*10^7<BR>\n" );
document.write( "Answer: 2.701* 10^7\r<BR>\n" );
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document.write( "7. Add the complex expressions, and simplify.<BR>\n" );
document.write( "(-10 + 3.1i) + (-6.2 + 2.5i)\r<BR>\n" );
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document.write( "        -16.2 + 5.6i<BR>\n" );
document.write( "        -10.6i<BR>\n" );
document.write( "        -21.8<BR>\n" );
document.write( "        -10.6\r<BR>\n" );
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document.write( "8. Short Answer: Simplify the following expression; express in terms of i.&#8730; -36<BR>\n" );
document.write( "Solving: i&#8730;-36= i(6)=6i<BR>\n" );
document.write( "Answer: 6i\r<BR>\n" );
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document.write( "9. Simplify the following expression.&#8730; -90&#8730; -15<BR>\n" );
document.write( "Solving: -15* -15* -15* -15* -15* -15=90<BR>\n" );
document.write( "Answer: -15&#8730;6\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #354818 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=354818\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1. Simplify the following expression, and rewrite it in an equivalent form with positive exponents.<BR>\n" );
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document.write( "Answer: x^7 over y^5 = y^2<BR>\n" );
document.write( "-----------------------------\r<BR>\n" );
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document.write( "2. Raise the quantity in parentheses to the indicated exponent, and simplify the resulting expression.<BR>\n" );
document.write( "(-5x3y)2<BR>\n" );
document.write( "Answer: 25x6y2<BR>\n" );
document.write( "Correct<BR>\n" );
document.write( "----------------------------<BR>\n" );
document.write( "       \r<BR>\n" );
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document.write( "3. Short Answer: Simplify the following expression, and rewrite it in an equivalent form with positive exponents.(4x-2)-2<BR>\n" );
document.write( "Solving: 4x*-2= -8x and -2*-2=4<BR>\n" );
document.write( "Answer: -8x+4<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Are you sure the -2 is not an exponent?<BR>\n" );
document.write( "Maybe your problem is (4x-2)^(-2) = 1/(4x-2)^2 = 1/(16x^2+16x+4)<BR>\n" );
document.write( "----\r<BR>\n" );
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document.write( "4. Multiply the expressions, and simplify.<BR>\n" );
document.write( "(x-2y3) • (2x4y-2) <BR>\n" );
document.write( "        <BR>\n" );
document.write( "Answer:2x-6y5<BR>\n" );
document.write( "---<BR>\n" );
document.write( "If those \"-2's\" are not exponents you should be using FOIL.<BR>\n" );
document.write( "If they are exponents you have the wrong answer.<BR>\n" );
document.write( "---------------------\r<BR>\n" );
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document.write( "5. Short Answer: Convert this number to scientific notation:<BR>\n" );
document.write( "64,000,000  <BR>\n" );
document.write( "Solving: 64,000,000 divided by 10^7= 6.4   <BR>\n" );
document.write( "Answer: 6.4*10^7<BR>\n" );
document.write( "Correct<BR>\n" );
document.write( "---------------------\r<BR>\n" );
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document.write( "6. Use scientific notation to divide the following two numbers. Express the answer using scientific notation; retain at least three decimal places.<BR>\n" );
document.write( "(8.7 • 10^9) / (3.22 • 10^2) <BR>\n" );
document.write( "Solving:(8.7/3.22)*10^7<BR>\n" );
document.write( "Answer: 2.702* 10^7<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Correct<BR>\n" );
document.write( "---------------------\r<BR>\n" );
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document.write( "7. Add the complex expressions, and simplify.<BR>\n" );
document.write( "(-10 + 3.1i) + (-6.2 + 2.5i) <BR>\n" );
document.write( "Answer: -16.2 + 5.6i<BR>\n" );
document.write( "Correct<BR>\n" );
document.write( "---------------------<BR>\n" );
document.write( "        <BR>\n" );
document.write( "8. Short Answer: Simplify the following expression; express in terms of i.&#8730; -36<BR>\n" );
document.write( "Solving: i&#8730;-36= i(6)=6i<BR>\n" );
document.write( "Answer: 6i <BR>\n" );
document.write( "----<BR>\n" );
document.write( "No: (i)(sqrt(-36)) = i*6i = -6<BR>\n" );
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document.write( "9. Simplify the following expression.&#8730; -90&#8730; -15<BR>\n" );
document.write( "Solving: -15* -15* -15* -15* -15* -15=90<BR>\n" );
document.write( "Answer: -15&#8730;6 <BR>\n" );
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document.write( "I don't understand your \"solving\" but the answer is correct.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
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