Answer:
x=6
Step-by-step explanation:
81^x=27^(x+2)
3^4x=3^3(x+2)
4x=3(x+2)
4x=3x+6
x=6
…………………………………………….not really sure about the last question
Would it be y2 ? idk im not sure but i tried
Answer:
![\Large \boxed{\sf A}](https://tex.z-dn.net/?f=%5CLarge%20%5Cboxed%7B%5Csf%20A%7D)
Step-by-step explanation:
![\displaystyle 2x\sqrt{44x}-2\sqrt{11x^3}](https://tex.z-dn.net/?f=%5Cdisplaystyle%202x%5Csqrt%7B44x%7D-2%5Csqrt%7B11x%5E3%7D)
Let<em> x</em> = 2 because x > 0
![\displaystyle 2(2)\sqrt{44(2)}-2\sqrt{11(2)^3}=4\sqrt{22}](https://tex.z-dn.net/?f=%5Cdisplaystyle%202%282%29%5Csqrt%7B44%282%29%7D-2%5Csqrt%7B11%282%29%5E3%7D%3D4%5Csqrt%7B22%7D)
See which expression is equal to 4√22 when <em>x</em> = 2
![2(2)\sqrt{11(2)}=4\sqrt{22}](https://tex.z-dn.net/?f=2%282%29%5Csqrt%7B11%282%29%7D%3D4%5Csqrt%7B22%7D)
The expression is option A
The ansser is 2x10^-3 sorry for the mistake i’m french