Question

plz solve it in the copy and then send ​

Answer 1

With exponential equations, one approach is to make the bases on both sides the same.

2

n

−

7

×

5

n

−

4

=

1250

2

n

−

7

×

5

n

−

4

=

2

×

5

4

Now we can compare the indices of like bases.

n

−

7

=

1

→

n

=

8

n

−

4

=

4

→

n

=

8

Do not be tempted to multiply the

2

and

5

!

The indices are different so you may not.

Answer 2

Answer:

n=8,hope this answer help you