document.write( "Question 177639: Factor completely. 20x^2 – 3x – 9 \n" ); document.write( "
Algebra.Com's Answer #132964 by MathTherapy(10552)\"\" \"About 
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We 1st need to multiply “c” by “a,” which gives us – 9 x 20 = - 180
\n" ); document.write( "Now, we need to find 2 factors that when multiplied, they give us – 180, and when added, they give us – 3 (“b”). These 2 factors are: - 15 and 12\r
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\n" ); document.write( "\n" ); document.write( "We then use the GCF of each binomial to factor each one, starting with the 1st
\n" ); document.write( "5x(4x - 3) + 3(4x - 3). Make sure that the two binomials, in parentheses (4x – 3), are equal.\r
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\n" ); document.write( "\n" ); document.write( "Therefore, the factors are: (5x + 3)(4x - 3)
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