9th grade math worksheet8

Here, 9th grade math worksheet8 on math is given. You can do the problems on this worksheet and also check whether the answer you have got is correct.

In this 9th grade math worksheet8, you can find 10 problems on math which are in the level of 9 th grade.

1. {Prime numbers which have 4 as a factor} is a

(A) Empty set
(B) Set of all prime numbers
(C) Singleton set



2.A Out of 45 houses in a village 25 houses have T.V and 30 houses have radio. Find how many of them have both.

(A) 40
(B) 10
(C) 20



3. In a class of 35 students, 28 students passed in History, 22 in Mathematics and 18 in both Subjects. Find the number of students who passed in (i) History alone and (ii) Mathematics alone

(A) 2, 4
(B) 5, 2
(C) 10, 4



4.Subtract 2x ³ – 3x² – 1 from x³ + 5x² – 4x – 6

(A) –x3-8x2+4x+5
(B) –x3-8x2-4x-5
(C) –x3+8x2-4x-5



5.Find the product of 2x + 3y and x²– x y + y² ?



(A) x3-x2y-xy2+3y3
(B) 2x3-x2y+xy2-3y3
(C) 2x3+x2y-xy2+3y3



6.Expand (11a-7b) ²

(A) 121a2+154ab-49b2
(B) 121a2-154ab+49b2
(C) 121a2+154ab-49b2



7.If the values of a + b and a – b are 7 and 4 respectively, find the values of a ² + b² and ab

(A) 15/2, 3/4
(B) 35/2, 13/4
(C) 65/2, 33/4



8.The factors of x² – 2 x y – x + 2 y.

(A) (x+y)(x-2)
(B) (x-2y)(x-y)
(C) (x-2y)(x-1)



9.What is the remainder when 2x³ + 3 x² + 5 x + 2 is divided by x+1

(A) -2
(B) 2
(C) 0



10. For every real number x, does x² - 1 > 0?

(A) True
(B) False
(C) Not to decide






9th grade math worksheet8

Answers:

  1. Empty set
  2. 10
  3. 10,4
  4. –x³ - 8 x ²- 4 x - 5
  5. 121a² + 154 a b-49 b²
  6. 2x³ - x² y + x y² - 3 y³
  7.  65/2, 33/4 
  8. (x - 2 y) (x - y)
  9. 0
  10. True
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