How did that came like 1 2^8 + 1 2^7 etc explain in detail pleas fast Example 8: - Maths - Indices

Question

How did that came like 1 2^8 + 1 2^7 etc explain in detail pleas
fast

Example 8:
Express 500 using base 2 and exponents

Varad Vasantrao Tagadpallewar · Accepted Answer

Dear student,
<img alt="" src=
"https://s3mn%20mnimgs%20com/img/shared/content_ck_images/ck_5d374f9109d7f%20jpg">
Regards

How did that came like 1.2^8 + 1.2^7 etc explain in detail pleas fast. Example 8: Express 500 using base 2 and exponents.