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Factorisation
Class 8
Exercise/MCQ Set 1
Factorisation
1. Factorise :- 4(x + 3y)
3
+ 12 (x + 3y)
2
8(x + 3y)^2
4(x + 3y)(x + 3y)
4(x+3y)^2 (x+3y+3)
8(x + 3y)
2. Factorise :- 4x
2
- 10xy - 6xz + 15yz
(2x - 5y)(2x - 3z)
(2x + 5y)(3x - 5z)
(2x - 5y)(2x + 3z)
(4x - 5y)(2x - 3y)
3. Factorise :- x
2
- 23x + 42
(x - 6)(x - 7)
(x -2) (x - 21)
(x -2) (x + 21)
(x -13)(x -4)
4. Factorise :- 81x
2
- 121y
2
(81x-11y)(81x + 11y)
(9x - y)( 9x + y)
(9x -11y)( 9x +11y)
(9x+11y)( 9x +11y)
5. If we Factorise this 35a
6
b
3
- 60a
3
b
6
we get 5a
3
b
3
(7a
3
- 12b
3
)
True
False
6. Factorise :- x
2
- x/2 + 1/16
(x+1/4)^2
(x-1/4)
(x-4)^2
(x-1/4)^2
7. Factorise :- 10x
2
- 7xy -12y
2
(4x - 5y)(3x + 2y)
(2x - 3y) (5x + 4y)
(2x - 3y)(5x - 4y)
(2x - 3y)(4x + 5y)
8. If 6x
2
- 5x - 6 = (3x + k)(2x - 3), then k =
3
-2
4
2
9. Factorise :- ax - bx + ay - by + az - bz
(x + y + z) (a - b)
(x + y + z) (a + b)
(x + y - z) (a - b)
(x - y - z) (a + b)
10. Factorise:- [4(a + b)
2
- 49c
2
]
(2a + b -7c)(2a + b + 7c)
(2a + 2b -7c)(2a + 2b + 7c)
(2a - 2b -7c)(2a - 2b + 7c)
(4a + 4b + 7c)(4a - 4b + 7c)
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Exercise/MCQ Set 2
Browse more MCQs below on Maths
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Factorisation
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time: 0.3156011105