Answers

2014-05-31T19:26:43+05:30
3x³ + 4x² -5x + 8 is divided by x - 1
x - 1 = 0
x = 1
put x = 1 in given  equation
= 3*1³ + 4*1² - 5*1 +8
= 15 - 5
= 10
hence remainder = 10
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2014-05-31T20:32:24+05:30
This is by usind remainder theorem

x-1)3x³ + 4x² - 5x + 8(3x² +7x + 2
    -3x³ +  3x²             
    0    + 7x² - 5x + 8
           - 7x² +7x   
             0    + 2x +8
                   - 2x + 2
                    0   +10
Therefore the remainder is 10
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