Answer with explanation:
W have to find the value of :
[tex][A=1.93 \times 10^7] - [B=9.7 \times 10^6][/tex]
Here exponent of 10 differs in both of these terms. So, to find the difference of A and B, we should make exponent of 10 equal in both the terms.
Exponent of A is Higher,so we will try to make this equal to exponent of 10 in B.
[tex]A=1.93 \times 10^7\\\\A=19.3 \times 10^6\\\\A-B=19.3 \times 10^6-9.7 \times 10^6\\\\=(19.3-9.7) \times 10^6\\\\=9.6\times 10^6[/tex]
