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Show that : (i) x -2 is a factor of 5x...

Show that :
(i) x -2 is a factor of `5x^2+ 15x- 50.`
(ii) 3x + 2 is a factor of `3x^2 -x - 2.`

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Show that : (i) x-5, is factor of x^(2)-11x+30 " " (ii) (x+2 , is a factor of x^(2)+3x+2 (iii) x-3, is a factor of 2x^(3)+7x^(2)-24x-45 " " (iv) 3x-2 , is a factor of 3x^(3)+x^(2)-20x+12 (v) x-1, is a factor of x^(3)-10x^(2)+23x-14 " " (vi) x-2 , is a factor of x^(3)-3x^(2)-x+6

Find the value of 'k' if : (i) x+5, is a factor of 2x^(3)+kx^(2)-11x-30 " " (ii) 2x-1 , is a factor of 2x^(3)-7x^(2)+11x-7+k

Factorize 3x^2-11x-4

Show that (i) x+3 is factor of 69+11x-x^(2)+x^(3) (ii) 2x-3 is factor of x+2x^(3)-9x^(2)+12

Show that x+1 and 2x-3 are factors of 2x^3-9x^2+x+12

Using the Factor theorem, show that (i) (x-2) is a factor of x^(3)-2x^(2)-9x+18 . Hence factorise the expression x^2-2x^2-9x+18 completely. (ii) (x+5) is a factor of 2x^3+5x^2-28x-15 . Hence factorise the expression 2x^3+5x^2-28x-15 completely. (iii) (3x+2) is a factor of 3x^(3)+2x^(2)-3x-2 . Hence factorise the expression 3x^3+2x^2-3x-2 completely.

Show that (x-3) is a factor of the polynomial x^3-3x^2+4x-12

For what value of a is (x-5) a factor of x^3-3x^2+a x-10 ?

If x-3 is a factor of x^2-a x-15 , then a= (a) -2 (b) 5 (c) -5 (d) 3

If x^(2) - 3x + 2 is factor of x^(4) - px^(2) + q then 2q - p is equal to

ICSE-REMAINDER AND FACTOR THEOREMS-Exercise 8A
  1. Find, in each case, the remainder when : (i) x^(4)- 3x^2 + 2x + 1 is...

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  2. Show that : (i) x -2 is a factor of 5x^2+ 15x- 50. (ii) 3x + 2 is ...

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  3. Use the Remainder Theorem to find which of the following is a factor o...

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  4. (i) If 2x + 1 is a factor of 2x^2+ ax- 3, find the value of a. (ii) ...

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  5. Find the values of constants a and b when x- 2 and x + 3 both are the ...

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  6. Find the value of k, if 2x +1 is a factor of (3k+2)x^3 + (k-1).

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  7. Find the value of a, if x -2 is a factor of 2x^5- 6x^4 -2ax^3+ 6ax^2+ ...

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  8. Find the values of m and n so that x-1 and x + 2 both are factors of x...

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  9. When x^3+2x^2-kx+4 . is divided by x - 2. the remainder is k. Find the...

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  10. Find the value of a, if the division of ax^3+ 9x^2 +4x -10 by x + 3 le...

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  11. If x^3+ ax^2+ bx + 6 has x -2 as a factor and leaves a remainder 3 whe...

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  12. The expression 2x^3+ ax^2+ bx -2 leaves remainder 7 and 0 when divided...

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  13. What number should be added to 3x^3-5x^2+6x so that when resulting pol...

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  14. What number should be subtracted from x^3 + 3x^2 - 8x + 14 so that on...

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  15. The polynomials 2x^3- 7x^2 + ax -6 and x^3-8x^2 +(2a + 1)x- 16 leave t...

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  16. If x-2 is a factor of the expression 2x^3+ax^2+bx - 14 and when the ex...

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  17. Find 'a' if the two polynomials ax^(3)+3x^(2)-9and2x^(3)+4x+a, leaves ...

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