Question

9^x-1=9

x⁴=16

2^x:2⁵=1

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Answer 1

9^x-1=9

=> 9^x-1=9¹

=> x-1 = 1

=> x = 1+1

=> x = 2

x⁴=16

=> x⁴=4²

=> x = 4

2^x:2⁵=1

=> 2^x-5=2⁰

=> x - 5 = 0

=> x = 0 + 5

=> x = 5

Answer 2

9^x-1=9

=> 9^x-1=9¹

=> x-1 = 1

=> x = 1+1

=> x = 2

x⁴=16

=> x⁴=4²

=> x = 4

2^x:2⁵=1

=> 2^x-5=2⁰

=> x - 5 = 0

=> x = 0 + 5

=> x = 5