find the reminder when 2x³-3x+²x-1is divided by x-1
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1
Answer:
hope it helps you
Step-by-step explanation:
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5
Answer:
6
Step-by-step explanation:
Step-by-step explanation:
2x³ - x² - 3x + 5
Let us consider (2x+1) is the factor
∴ 2x + 1 = 0
2x = -1
x = \frac{-1}{2}2−1
substituting;
f(\frac{-1}{2}2−1 ) = 2 x (\frac{-1}{2}2−1 )³ - (\frac{-1}{2}2−1 )² - 3 x \frac{-1}{2}2−1 + 5
2 x \frac{-1}{8}8−1 - \frac{1}{4}41 + \frac{3}{2}23 + 5
\frac{-1}{4}4−1 - \frac{1}{4}41 + \frac{3}{2}23 + 5
\frac{-1-1+6+20}{4}4−1−1+6+20 = \frac{-2+26}{4}4−2+26 = \frac{24}{4}424 = 6
∴ When 2x³ - x² - 3x + 5 is divided by 2x+1, the remainder is 6
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