Question

expand by expressing powers of 10 in the exponential form: a)172 b)5,643

Answer 1

a :- 1.72×10 power 2
b:-5 643×10power 3

Answer 2

Hey mate,
Here is your answer,


(a) 172
$172 \\ = 172 \times 1 \\ = 17.2 \times 10 \\ = 1.72 \times 10 \times 10 \\ = 1.72 \times {10}^{2}$


(b)5,643
$5643 \\ = 5643 \times 1 \\ = 564.3 \times 10 \\ = 56.43 \times 10 \times 10 \\ = 5.643 \times 10 \times 10 \times 10 \\ = 5.643 \times {10}^{3}$

Hope this helps

Thank you :)