Math, asked by nahid80, 1 year ago

one by 49 into 7 to the power of 2x =7to the power of 8.FIND THE X VALUE​


Anonymous: Ans = -5

Answers

Answered by vanshkdubey2002
3

Answer:

Step-by-step explanation:anwer should be 24.5


nahid80: will u say me step by step plz
vanshkdubey2002: (1/49*7)^2x=7
vanshkdubey2002: (1/7)^2x=7
vanshkdubey2002: 2x=49
vanshkdubey2002: x=49/2 or 24.5
nahid80: tq soooo much
vanshkdubey2002: anytime!
Answered by Anonymous
6

Step-by-step explanation:

1/(49) ×(7)^2x = (7)^8

1/(7)^2 ×(7)^2x = (7)^8

1/ (7)^2x + 2 = (7)^8

(7)^-2x-2 = (7)^8

-2x -2 = 8

-2x = 10

x = -5 ✓✓✓✓✓

hope it's helpful (•‿•)

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