Advertisement Remove all ads

If X140 + 2x151 + K is Divisible By X + 1, Then the Value Of K Is - Mathematics

MCQ

If x140 + 2x151 + k is divisible by x + 1, then the value of k is

Options

  • 1

  • -3

  • 2

  • -2

Advertisement Remove all ads

Solution

As  f(x) = x140 + 2x151 + k is divisible by (x +1).

i.e., (x+1)is a factor of f(x).

Therefore, f(-1) = 0

`(-1)^140+2(-1)^151 + k =0`

                             `1 -2 +k =0`

                                            `k=1`

  Is there an error in this question or solution?
Advertisement Remove all ads

APPEARS IN

RD Sharma Mathematics for Class 9
Chapter 6 Factorisation of Polynomials
Q 4 | Page 34
Advertisement Remove all ads
Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×