SOLUTION: 8 * 10 -4 __________ 4 * 10 8

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Question 144386This question is from textbook SAXONMATH 8/7
: 8 * 10 -4
__________
4 * 10 8 This question is from textbook SAXONMATH 8/7

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
%288%2A10%5E%28-4%29%29%2F%284%2A10%5E8%29 Start with the given expression


%282%2A10%5E%28-4%29%29%2F%2810%5E8%29 Divide 8%2F4 to get 2.


2%2A10%5E%28-4-8%29 Subtract the exponents


2%2A10%5E%28-12%29 Subtract


2%2F10%5E%2812%29 Flip the fraction to make the exponent positive


So %288%2A10%5E%28-4%29%29%2F%284%2A10%5E8%29=2%2F10%5E%2812%29