Question

what no. must be subtracted from 7x3 -5x2 - 3x -1 , so that x-1 is one of he factor

Answer 1

Step-by-step explanation:

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Answer 2

Given:

7x³ -5x² - 3x -1

To find:

Number must be subtracted from 7x³ -5x² - 3x -1, so that x-1 is one of the factor

Solution:

If you want to make x-1 as one of the factor of the given polynomial7x³ -5x² - 3x -1

so x = 1 must be the factor of the polynomal 7x³ -5x² - 3x -1 that means by putting the value of x as 1 the polynomial must give the value as 0

• 7x³ -5x² - 3x -1
• 7(1)³ -5(1)² - 3(1) -1
• 7 - 5 - 3 - 1
• 7 - 9
• -2

hence,

-2 must be subtracted from 7x³ -5x² - 3x -1, so that x-1 will be the factor of 7x³ -5x² - 3x -1