Question

8. Simplify(50+5°)*5-3
and express the result in
power notation with
positive exponent 2M​

Answer 1

(i) (−4)

5

÷(−4)

8

(ii) (

2

3

1

)

2

(iii) (−3)

4

×(

3

5

)

4

(iv) (3

−7

÷3

−10

)×3

−5

(v) 2

−3

×(−7)

(−3)

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VIDEO EXPLANATION

ANSWER

(i) (−4)

5

÷(−4)

8

=

(−4)

8

(−4)

5

=(−4)

5−8

=(−4)

−3

=

(−4)

3

1

(ii) (

2

3

1

)

2

=

2

3×2

1

=

2

6

1

(iii) (−3)

4

×(

3

5

)

4

=(−1)

4

×(3)

4

×(

3

5

)

4

=(−1)

4

×5

4

=5

4

(iv) (3

−7

÷3

−10

)×3

−5

=(

3

−10

3

−7

)×(3)

−5

=3

−7+10

×3

−5

=3

3−5

=3

−2

=

3

2

1

(v) 2

−3

×(−7)

(−3)

=

2

3

1

×

(−7)

3

1

=(

2×(−7)

1

)

3

=

(−14)

3

1

Answer 2

Answer:

$(50 + {5}^{0} ) \times 5 - 3 \\ {5}^{0} = 1 \\( 50 + 1) \times 5 - 3 \\ 51 \times 5 - 3 \\ 255 - 3 = 252 \\ 256 - 4 \\ {16}^{2} - {2}^{2}$