Math, asked by Nanditasahoo2008, 1 month ago


Mount Litera Zee School, Contai

Class- VII
Time- 40 m
Sub- Maths

* Required

Name *

Section *

Roll Number *

Q. 1) Evaluate x + xy for x = -6 & y = 2



6

12

-18

18

Q. 2) Simplify: (2xy+4y+7z²) - (3xy+2y-9z²)



xy+2y+16z²

-xy+2y+16z²

-xy-2y+16z²

-xy-2y-16z²

Q. 3) Add (3x+4y+2z), (5z+7x+y) & (2x+9y-3z)



12x+14y+4z

12x+14y-4z

12x-14y+4z

None of these

Q. 4) If A= x²-7x+10 & B= x-2 then find A-B


x²-8x+8

x²-6x+8

x²-6x+12

x²-8x+12

Q. 5) What should be added to 2xy-5x+3 to get -xy+9+7x ?



-3xy+6+12x

-xy+6+12x

-3xy+6-2x

-3xy-6+12x

Q. 6) Which of the following are the terms of the polynomial 5x²+ 3y²-4zp ?



5x, 3y, -4zp

5x², 3y², 4zp

x², y², zp

5x², 3y², -4zp

Q. 7) The perpendicular sides of a rectangle are 4m-3n and 5n+3m. Find the perimeter.



14m-4n

14m+4n

7m+2n

14n+4m

Q. 8) The sides of the triangle are x²-xy-y², 3xy+5y² and x²+y². Find the perimeter.



2x²+5y²+2xy

2x²-7y²+4xy

2x²+5y²-2xy

None of these

Q. 9) -11x²y³z⁴ & 17z⁴x²y³ are like terms.



True

False

Q. 10) Evaluate a³+a²+4 for a=-3



40

-14

-13

14





Answers

Answered by MuskanBhadoriya
3

Answer:

1. -18

2. -xy+2y+16z²

3. 12x+14y+4z

4. x²-8x+12

5.-3xy+6+12x

6. 5x² 4y² -4zp

7. 14m+4n

8.2x²+5y²+2xy

9. False

10. -14

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