Home
Class 9
MATHS
If is a factor of each of the following ...

If is a factor of each of the following two polynomials, find the values of `a` in each case. `x^3-2a x^2+a x-1` `x^5-3x^4-a x^3+3a x^2+2a x+4`

Text Solution

Verified by Experts

(x-a) is factor of f(x)
f(a)=0
`f(x)=x^3-2ax^2+ax-1`
`f(2)=0`
`2^3-2a2^2+a*2-1=0`
`8-8a+2a-1=0`
`a=7/6`
`g(x)=x^5-3x^4-ax^3+2ax+4`
...
Promotional Banner

Topper's Solved these Questions

  • FACTORIZATION OF ALGEBRAIC EXPRESSIONS

    RD SHARMA|Exercise All Questions|226 Videos
  • GRAPHICAL REPRESENTATION OF STATISTICAL DATA

    RD SHARMA|Exercise All Questions|68 Videos

Similar Questions

Explore conceptually related problems

In each of the following polynomials,find the value of a if x+a is a factor: x^(3)+ax^(2)-2x+a+4

In each of the following polynomials,find the value of a if x+a is a factor: x^(4)-a^(2)x^(2)+3x-a

In each of the following two polynomials,find the value of a, if x+a is a factor.x^(3)+ax^(2)-2x+a+4x^(4)-a^(2)x^(2)+3x-a

In each of the following two polynomials,find the value of a, if x-a is a factor: x^(6)-ax^(5)+x^(4)-ax^(3)+3x-a+2x^(5)-a^(2)x^(3)+2x+a+1

In each of the following polynomials,find the value of a if x+a is a factor x^(3)+ax^(2)-2x+a+4x^(4)-a^(2)x^(2)+3x-a

In each of the following polynomials, find the value of a if x+a is a factor of (i) x^(3)+ax^(2)-2x+a+4 (ii) x^(4)-a^(2)x^(2)+3x-a

Solve each of the following equation. Also, verify the result in each case. 3x-2(2x-5)=2(x+3)-8 x-x/4-1/2=3+x/4

Solve each of the following equation. Also, verify the result in each case. 3/4(x-1)=x-3 2. 3(x-3)=5(2x+1)

Which of the following expressions are polynomials and which are not? 3x^(2/3)-5x-4x^(3)+5/2

Using factor theorem,factorize each of the following polynomials : x^(3)+2x^(2)-x-2

RD SHARMA-FACTORIZATION OF POLYNOMIAL-All Questions
  1. What must be added to x^4+2x^3-2x^2+x-1 so that the result is exactly ...

    Text Solution

    |

  2. Without actual division, prove that x^4+2x^3-2x^2+2x-3 is exactly divi...

    Text Solution

    |

  3. If is a factor of each of the following two polynomials, find the va...

    Text Solution

    |

  4. If f(x)=x^4-2x^3+3x^2-a x+b is a polynomial such that when1 it is divi...

    Text Solution

    |

  5. Using factor theorem, factorize each of the following polynomials :...

    Text Solution

    |

  6. Use factor theorem to prove that (x+a) is a factor of (x^(n)+a^(n))...

    Text Solution

    |

  7. If f(x)=x^4-2x^3+3x^2-a x+b is a polynomial such that when it is divid...

    Text Solution

    |

  8. Let R1 and R2 are the remainders when the polynomials x^3+2x^2-5ax-7 a...

    Text Solution

    |

  9. The polynomials a x^3+3x^2-13 and 2x^3-5x+a are divided by x+2, if the...

    Text Solution

    |

  10. If the polynomials ax^3+4x^2+3x-4 and x^3-4x+a leave the same remainde...

    Text Solution

    |

  11. Find the remainder when f(x)=x^3-6x^2+2x-4 is divided by g(x)=3x-1.

    Text Solution

    |

  12. Find the remainder when p(x)=4x^2-2 x^2+14 x-3 is divided by g(x)=x-1/...

    Text Solution

    |

  13. Find the remainder when p(x)=x^3-a x^2+6x-a is divided by (x-a)dot

    Text Solution

    |

  14. Find the integral roots of the polynomial f(x) = x^3 + 6x^2 + 11x + 6

    Text Solution

    |

  15. What must be subtracted from x^3-6x^2-15 x+80 so that the result is ex...

    Text Solution

    |

  16. If x^3+a x^2-b x+10 is divisible by x^2-3x+2, find the values of a and...

    Text Solution

    |

  17. What must be subtracted from 4x^4-2x^3-6x^2+x-5 so that the result is...

    Text Solution

    |

  18. The polynomials a x^3+3x^2-3 and 2x^3-5x+a when divided by (x-4) leave...

    Text Solution

    |

  19. If the polynomials 2x^3+a x^2+3x-5 and x^3+x^2-4x+a leave the same rem...

    Text Solution

    |

  20. In each of the following two polynomials, find the value of a , if x...

    Text Solution

    |