8.Algebraic Expressions and operations on them / 7 th /Mathematics/Test-2

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Subject:- Mathematics Questions :- 10 Mark :- 20

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The degree of a trinomial *

2 points

Add the following expressions: 5x,7x,-6x *

2 points

a) -6x

b) 5x

c) 7x

d) 6x

Add the following expressions: 5a²b, -8a²b, 7a²b *

2 points

a) 4a²b

c) 6a²b

b) 2a²b

d) 8ab²

Add the following expressions: x-3y + 4z, y-2x-8z, 5x-2y-3z *

2 points

a) 4x - 4y - 7z

b) 4x + 4y - 7z

c) 2x - 8y-7z

d) 5x - 4y - 8z

Subtract : -8xy from 7xy *

2 points

a) 4xy

b) 8xy

c) 2xy

d) 15xy

Substract (x-y) from (4y-5x) *

2 points

a) 6y - 8x

b) 8x -6y

c) 9y - 2x

d) 5y - 6x

Subtract the sum of (8a-6a² +9) and(-10a-8+8a²) from -3. *

2 points

a) 4 + 2a + 4a²

C) -4 + 2a-2a²

b) 4 + 4a - 2a²

d) −4+ 2a + 2a²

Simplify:(5x-9y)-(-7x+y) *

2 points

a)10x-12y

b) 12x 10y

c) 12x+10y

d) 14x - 12y

Divide the following. 16x³ by 4x *

2 points

a) 4x²

c) 8x²

b) 6x²

d) 2x²

Divide the following 26x²y by 2xy *

2 points

a) 10x

b) 12x

c) 15x

d) 13x

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