document.write( "Question 299793: I have several questions I don't understand and need answered.\r
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document.write( "1. Identify the roots of -3x^3 - 21x^2 + 72x + 540 = 0. State the multiplicity of each root.\r
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document.write( "2. Write the simplest polynomial function with zeros -2, 7, and -1/2\r
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document.write( "3. User Pascal's Triangle to expand the expression (4x+3)^4\r
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document.write( "4. Write a functino that transforms f(x)=2x^3+4 in the following way: Stretch vertically by a factor of 6 and shift 5 units left.\r
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document.write( "5. Let f(x)=5x^3 + 7x^2 + 4x - 5. Write a function g that reflects f(x) across the y-axis.\r
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document.write( "An explanation of how to do each would be greatly appreciated, thank you! \n" );
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Algebra.Com's Answer #215303 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Identify the roots of -3x^3 - 21x^2 + 72x + 540 = 0. State the multiplicity of each root. \n" ); document.write( "----------------- \n" ); document.write( "Divide by -3 \n" ); document.write( " \n" ); document.write( "Check for integer roots. 180 has factors of 1,2,3,4,5,6,9,10,12 & 15 \n" ); document.write( "Sub each one for x, both + and minus, and check for a zero. I would use Excel to try them. \n" ); document.write( "Once you find a root, then it becomes a quadratic. \n" ); document.write( "--------------------------------------------------- \n" ); document.write( "Post the other problems one at a time. Tutors are more likely to do one problem than a list of them.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |