document.write( "Question 920319: Write and simplify only the specified term:\r
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Algebra.Com's Answer #558302 by MathTherapy(10552)\"\" \"About 
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Write and simplify only the specified term:\r
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document.write( "\"%28x+%2B+y%29%5E7\" 
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document.write( "Use the Binomial Expansion Formula: (a + b)n = nCr-1 * a [n -(r - 1)] * b r - 1  to determine the 4th term
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document.write( "With a = x;  b = y  ;  r, or term number = 4; and n = 7,
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document.write( "(a + b)n = nCr-1 * a [n -(r - 1)] * b r - 1  becomes:
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document.write( "(x + y)7 = 7C4-1 * x [7 -(4 - 1)] * y 4 - 1 
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document.write( "(x + y)7 = 7C3 * x 4 * y 3
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document.write( "(x + y)7 = 35x4y3
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