Math, asked by bhargavi161, 1 year ago

2^n-1*5^n-4=1250 solve this

Answers

Answered by dhananjaysharma2

2n-7*5n-4 =1250
2n-7*5n-4 =21*54
n-7=1 and n-4=4
n=1+7=8 and n=4+4=8
So n=8

dhananjaysharma2: fast you send me right question

bhargavi161: from where you got 21*54

bhargavi161: 2^n-7*5^n-4=1250

dhananjaysharma2: this is 2¹×5 per power 4

bhargavi161: 2to the power n-7

bhargavi161: 5 to the power n-4

bhargavi161: both are multiplied

bhargavi161: result 1350

bhargavi161: sorry 1250

bhargavi161: i got it.thq

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