1/10^9x5^2(2)^5x6^2-4x6^-4/10^6/10^-6/10^15x100^5

Answer 1

Looks like a mess to me. Are the x's supposed to mean multiplication? Use parentheses to separate different terms.

Someone will be glad to critique your work

Answer 2

1/10^9.5^2(2)^2-4.6^-4/10^6/10^-6/10^15.100^5=