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WorkShop Calculation and Science
ALGEBRA
Set 3
Set 3
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Q12603
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What is the formula for (a-b)<sup>2</sup>?
A
a<sup>2</sup>- 2ab + b<sup>2</sup>
B
a<sup>2</sup> + 2ab + b<sup>2</sup>
C
a<sup>2</sup> - 2ab - b<sup>2</sup>
D
(-a<sup>2</sup> - 2ab - b<sup>2</sup>)
Q12604
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Which is equal to (a+b)<sup>2</sup>-(a-b)<sup>2</sup>
A
2ab
B
3ab
C
4ab
D
5ab
Q12605
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What is the value of a x a<sup>2</sup> x a<sup>3</sup> x a<sup>4</sup>?
A
a<sup>7</sup>
B
a<sup>8</sup>
C
a<sup>9</sup>
D
a<sup>10</sup>
Q12606
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What is the value of (a<sup>5</sup>)<sup>7</sup>?
A
a<sup>35</sup>
B
a1<sup>2</sup>
C
a<sup>2</sup>1
D
a<sup>22</sup>
Q12607
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What is the value of 625<sup>0</sup>?
A
0
B
1
C
525
D
25
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