Question

find the value and solve it :- 1 A*A=9 A​

Answer 1

Answer:

Step-by-step explanation:

1A^2=9A

1=9/A

A=9

Answer 2

The value is 2

Step-by-step explanation:

Given the expression

9^{x+2}= 720+9^x

\text{we have to find the value of }(4x)^\frac{1}{2}

9^{x+2}= 720+9^x

9^x\times 9^2= 720+9^x

9^x\times 9^2-9^x=720

9^x(9^2-1)=720

9^x\times 80=720

9^x=\frac{720}{80}=9

9^x=9^1

Comparing both sides we get x=1

(4x)^\frac{1}{2}=(4(1))^{\frac{1}{2}}=4^{\frac{1}{2}}=2