Algebra English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021

9th Standard

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Maths

Time : 00:10:00 Hrs
Total Marks : 10

Part A

10 x 1 = 10
1. Which of the following is trinomial?

(a)

-7z

(b)

${ z }^{ 2 }-{ 4y }^{ 2 }$

(c)

${ x }^{ 2 }y-{ xy }^{ 2 }+y$

(d)

$12a=9ab+5b-3$

2. The area of a rectangle with length $2l^{ 2 }m$ and breadth $3l^{ 2 }m$ is_______________________

(a)

$6l^{ 3 }m^{ 3 }$

(b)

$l^{ 3 }m^{ 3 }$

(c)

$2l^{ 3 }m$

(d)

$4l^{ 3 }m^{ 3 }$

3. The roots of the polynominal equation ${ x }^{ 2 }+2x=0$are_______________

(a)

x=0, 2

(b)

x=1, 2

(c)

x=1, -2

(d)

x=0, -2

4. The degree of the polynomial $\sqrt { 2 } { x }^{ 2 }-\frac { 7 }{ 2 } { x }^{ 4 }+x-5x^{ 3 }\quad is$_____________________

(a)

2

(b)

3

(c)

4

(d)

5

5. Divide x3-4x2+6x by "x" the result is _____________________

(a)

$x^{ 2 }+4x-6$

(b)

$x^{ 2 }-4x-6$

(c)

$x^{ 2 }-4x+6$

(d)

$x^{ 2 }+4x+6$

6. Which of the following has a factor?

(a)

x+ 2x

(b)

(x - 1)2

(c)

(x + 1)2

(d)

(x- 22)

7. (a-b) (a2+ab+b2)=_________

(a)

a+ b+ c- 3abc

(b)

a- b2

(c)

a+ b3

(d)

a3 - b3

8. (a-b-c)2 is equal to________

(a)

(a+b+c)2

(b)

(a+b+c)2

(c)

(-a + b + c)2

(d)

(a+b+c)2

9. Quadratic polynimial may have maximum of______linear factors

(a)

1

(b)

2

(c)

3

(d)

4

10. If one of the factor of x2-9x+18 is (x-3) then the other factor is_________

(a)

x-9

(b)

x+6

(c)

(x-6)

(d)

x-18