document.write( "Question 1081849: Can you please help me evaluate these two expressions? Thanks!
\n" ); document.write( "expression 1 = ₉C₃
\n" ); document.write( "expression 2 = ₂₀C₃
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Algebra.Com's Answer #695905 by math_helper(2461)\"\" \"About 
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expression 1 = ₉C₃
\n" ); document.write( "expression 2 = ₂₀C₃\r
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\n" ); document.write( "expression 1: ₉C₃ = 9!/(6!*3!) = (9*8*7)/(3*2) = 84
\n" ); document.write( "expression 2: ₂₀C₃ = 20!/(17!*3!) = (20*19*18)/(3*2) = 1140
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