document.write( "Question 1177209: Suppose that the functions s and t are defined for all real numbers x as follows.\r
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Algebra.Com's Answer #805477 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "(s-t)(x) = (4x+2) - 5x = -x + 2.                       ANSWER\r\n" );
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document.write( "(s*t)(x) = (4x+2)*(5x) = 5x*(4x-2) = 20x^2 - 10x.      ANSWER\r\n" );
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document.write( "(s+t)(1) = 4*1 + 2 + 5*1 = 4 + 2 + 5 = 11.             ANSWER\r\n" );
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