SOLUTION: Please help me understand this 2^d(5^f) - 10^d f = 4 and d = 1

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Question 168088: Please help me understand this
2^d(5^f) - 10^d
f = 4 and d = 1
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
2^d(5^f) - 10^d
f = 4 and d = 1
2^1(5^4)-10^1
2*625-10
1,250-10
1,240 ans.