Question

2. Find the value of x for which (5/9)⁴×(5/9)‐⁷=(5/9)²x,‐¹
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Answer 1

Answer:

X = 9/5

Step-by-step explanation:

I attach solution in pic

Answer 2

Answer:

(5/9)^4×(5/9)^-7=(5/9)^2x^-1

or, 5^4×9^-4×5^-7×9^7=25/81 (1/x)

or, 5^(4-7)×9^(7-4)=25/81x

or, 5^-3×9^3=(5/9)^2×(1/x)

or, 5^-3×5^-2×9^3×9^2=1/x

or 5^-5×9^5=1/x

or (9/5)^5=1/x

or 18.89=1/x

or, x= 0.0529