(5.7x10^2)+(2.8x10^5)^2

Answer 1

(5.7x10^2)+(2.8x10^5)^2 in standrad form

Answer 2

strange question

(5.7x10^2)+(2.8x10^5)^2
= 570 + 7.84 x 10^10
= 570 + 7.84x10^10 = 570 + 78'400'000'000
= 78'400'000'570

If you change this to scientific form the 570 will become insignificant and
I would simply leave it as 7.84 x 10^10