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# What is x8 plus 9 equals 81?

Updated: 4/28/2022

Wiki User

13y ago

x8+9=81

-9 -9

x8 =72

/8 /8

x= 9

Wiki User

13y ago

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Q: What is x8 plus 9 equals 81?
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### If 2 plus 4 equals 10 6 plus 9 equals 57 10 plus 25 equals 265 then 18 plus 81 equals to?

few errors in your title: 2 plus 4 = 6 6 plus 9 = 15 10 plus 25 = 35 18 + 81 = 99

### 9n plus 9 equals 81 what is the value of n?

9n+9=81 9n=72 n=8

### If 9h plus 2 equals -79 what is h?

9h + 2 = -79 9h = -81 h = -81/9 h = -9

### How do you factor x8-81?

(x2 - 3)(x2 + 3)(x4 + 9)

### What is the square root of 81?

The square root of 81 is: &plusmn;9 (9 or -9)A square root is a number which, when multiplied by itself, equals the original number. As 9 x 9 = 81 and -9 x -9 = 81, the answer is plus or minus nine.

### How do you factor the equation y equals 4x2 - 36x plus 81?

The expression is likely 4x2 - 36x +81 which is the same as (2x - 9)(2x - 9) or (2x - 9)2

### Is 81 a multiple of 9?

how do you not know it is of course cos 9 times 9 equals to 81

729/81 = 9

81 x 81 = 6561

### What times equals 81?

How about: 9 times 9 = 81 or 81 times 1 = 81