document.write( "Question 1187429: Please help I am confused thank You. \r
\n" ); document.write( "\n" ); document.write( "Check that the following expressions are equivalent using the values x = -2, -1, 0, 1, 2.
\n" ); document.write( "(12x^2−27)/(3) and −(−2x+3)(2x+3)\r
\n" ); document.write( "\n" ); document.write( "Prove the equivalence of the two expressions in the previous question using algebraic manipulation.
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Algebra.Com's Answer #818392 by Alan3354(69443)\"\" \"About 
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Check that the following expressions are equivalent using the values x = -2, -1, 0, 1, 2.
\n" ); document.write( "(12x^2−27)/(3) and −(−2x+3)(2x+3)
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\n" ); document.write( "Sub the values for x.
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\n" ); document.write( "For x = -2:
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\n" ); document.write( "(12*(-2)^2 - 27)/3 = -(-2*-2 + 3)*(2*-2 +3)
\n" ); document.write( "(12*4 - 27)/3 = -(4 + 3)*(-4 + 3)
\n" ); document.write( "21/3 = -7*-1
\n" ); document.write( "7 = 7
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\n" ); document.write( "Do the same for the other values.
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\n" ); document.write( "Prove the equivalence of the two expressions in the previous question using algebraic manipulation.
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\n" ); document.write( "(12x^2−27)/(3) and −(−2x+3)(2x+3)
\n" ); document.write( "4x^2 - 9 = (2x-3)*(2x+3)
\n" ); document.write( "4x^2 - 9 = 4x^2 - 9
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