document.write( "Question 1123580: If the product of the binomial (2x-5) with the trinomial (3x^2+2x-5) is formed, what is the coefficient of the x^2 term? Please help me answer this. \n" ); document.write( "
Algebra.Com's Answer #739921 by greenestamps(13200)\"\" \"About 
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\n" ); document.write( "It wouldn't take much work to perform the entire polynomial multiplication; however, there are times when it is a useful skill to be able to determine the coefficient of a particular power in the product of two (or more) binomials, without performing the entire multiplication.

\n" ); document.write( "To do this, you need to think about where terms of particular powers in the product come from in the multiplication. In this product....

\n" ); document.write( "The constant term is the product of the constants in the two polynomial factors: (-5)*(-5) = 25

\n" ); document.write( "The leading (x^3) coefficient is the product of the leading coefficients of the two factors: (2)*(3) = 6

\n" ); document.write( "The coefficient of the x term in the product comes from two places -- the product of the x term in the first polynomial and the constant in the second; and the product of the constant in the first polynomial and the x term in the other: (2)(-5)+(-5)(2) = -20

\n" ); document.write( "See if you can find the answer to your problem using this process.

\n" ); document.write( "There are two places where the product of one term of each polynomial will produce an x^2 term.
\n" ); document.write( "What are those two places?
\n" ); document.write( "What are the coefficients of those two products?
\n" ); document.write( "The answer to your question is the sum of those two coefficients.
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