Question

1) Simplify

(a) 240÷[8+{24×(10-7)}]
(b) (12×3)÷4×5-7+3×(9-5​

Answer 1

Step-by-step explanation:

(

(5)

2

×(7)

−4

(5)

−1

×(7)

2

)×(

(5)

3

×(7)

−5

(5)

−2

×(7)

3

)

Q2

Simplify and express the answer in exponential form

1.[(3

2

)

4

×(15

3

)]÷5

3

2.[(3

2

)

5

×7

10

×2

10

]

3.

3

4

×a

5

×5

3

×b

2

9

3

×a

7

×15

2

×8

0

×b

5

4.[(−3)

5

×(−3)

2

]÷(−3)

7

Q3

If A=

3

2

3

1

3

7

1

3

2

2

3

5

3

4

3

2

andB=

5

2

5

1

5

7

5

3

5

2

5

6

1

5

4

5

2

,then

compute 3A−5B