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- 1. Multiple Choice
Factorize the following:
(x2 - 9)(x2 + 9)
x4 - 81
(x-9)2
x2 -18x + 81
2x - 18
- 2. Multiple Choice
What is x5, in expanded notation?
x.x.x
x.x.x.x
x.x.x.x.x
x10
- 3. Multiple Choice
Use your algebraic skills to solve.
13
16
- 4. Multiple Choice
Simplify:
2xy3 + x - 2y
If x = 2 and y = -2
2(4)(-2)3 + 2 - 2(2)
= 4(-12) + 2 + 4 = - 22
2(8)(-2)3 + 2 - 2(-4)
= 4(20) + 2 + 4 =32
2(2)(-2)3 + 2 - 2(-2)
= 4(-8) + 2 + 4 = - 26
- 5. Multiple Choice
The additive inverse of -10 is 10.
True
False
- 6. Multiple Choice
(ax-bx)+(2a-2b)=.........
(ax-bx)(2a-2b)
2xa2+2abx-2abx+-2b2x
x(a-b)+2(a-b)= (a-b)(x-2)
None of the above
- 7. Multiple Choice
Solve for x: 2x2=16
x2=8
x=4
x=14
x=0
- 8. Multiple Choice
Arrange in descending order: 2x; 2x; 2x2; 2x; x2 ; 2; x , (if x3)
2x2 ; 2x; ; x2; 2x; x; 2
2x; 2x; 2x2; 2x; x2 ; 2; x
x; 2; 2x; x2 ; 2x; 2x2;
2; x; 2x; 2x2; 2x
- 9. Multiple Choice
use your algebraic skills to solve this probrem
2 + 10 x 4= 42
4 + 10 x 2=28
- 10. Multiple Choice
State whether the following is true or false:
x + y + z = z + y + x
False
True
- 11. Multiple Choice
Q. Simplify the following expression:
-10x + 15 - 3x + 2
13x2 + 17
-13x2 + 13
-13x+17
-7x+17
- 12. Multiple Choice
An example of a natural number is...
-6
1
-0,12
1x2
- 13. Multiple Choice
The difference of the following two cubes can be factorised as:
x3 - y3
(x - y) = (x2 + xy + y2)
(x2 - y2) = (x - xy + y)
- 14. Multiple Choice
Only factors can be cancelled out in fractions, never terms.
True or False?
True
False
- 15. Multiple Choice
Round off the following number 1523,00195593 to four decimal places.
1523,0019
1523,0020
1523,5593
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