Question

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Answer 1

Answer:

7^2m=7^-6*7^-4

7^2m=7^-10

comparing 2m= -10

therefore.

m=-5

Answer 2

Step-by-step explanation:

7power (2m +4)=7to the power -6

then by using identity 2m +4=-6

2m=-6-4

2m=-10

m=-10/2

m=-5