9th class Mathematics Online test Unit 5- Factorization

Unit 5 – Factorization

Quiz

 

1. What is the factorization of ��2−9x 2 −9?
   1.   (x+3) 2
   2.   (��+3)(��−3)(x+3)(x−3)
   3.   ��(��−9)x(x−9)
   4.   None of these
2. The expression ��2+5��+6x 2 +5x+6 factors into:
   1.   (x+2)(x+3)
   2.   (x−2)(x−3)
   3.   (x+6)(x−1)
   4.   None of these
3. Which of the following is a factor of 2��2+5��+32x 2 +5x+3?
   1.   2x+1
   2.   x+3
   3.   x+1
   4.   None of these
4. What is the factorization of 4��2−25��24a 2 −25b 2 ?
   1.   (2a+5b)(2a−5b)
   2.   (2��+5��)2(2a+5b) 2
   3.   (4a−25b)(4a+25b)
   4.   None of these
5. If ��2+����+��=0x 2 +px+q=0 and roots are -2 and -3, what is ��p?
   1.   5
   2.   -5
   3.   -1
   4.   None of these
6. What is the factorization of ��3+��2−4��−4x 3 +x 2 −4x−4?
   1.   (x−2)(x 2 +2x+2)
   2.   (x+1)(x 2 −4)
   3.   (x+1)(x+2)(x−2)
   4.   None of these
7. The factorization of ��2+2����+��2a 2 +2ab+b 2 is:
   1.   (a−b) 2
   2.   (a+b) 2
   3.   (a+b) (a−b) 2
   4.   None of these
8. Which of the following is the correct factorization of ��2+7��+10x 2 +7x+10?
   1.   (x+5)(x+2)
   2.   (x+10)(x−3)
   3.   (x+7)(x+1)
   4.   None of these
9. The factorization of ��2−16��2a 2 −16b 2 is:
   1.   (a+4b)(a−4b)
   2.   (��−��)(��+��)(a−b)(a+b)
   3.   (��+8��)(��−8��)(a+8b)(a−8b)
   4.   None of these
10. What is the greatest common factor (GCF) of 6��36x 3 and 9��29x 2 ?
    1.   3x 2
    2.   6x 3
    3.   9x 2
    4.   3x 3