Question

4) Find the value of ‘p’ from 49 to power p x 7 to power -2 = 343

Answer 1

(49^p)×{7^(-2)}=343

{7^(2p)}×{7^(-2)}=7^3

7^{2p+(-2)}=7^3

7^(2p-2)=7^3

2p-2=3

2p=3+2

2p=5

p=5/2

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