8.23 x 109 = 8,230,000,000
It is x1 which is x.
It is: (x-y)4
Well, 10 = 2 x 5, so 10^4 = (2 x 5)^4 = (2^4) x (5^4). The carat[^] symbol means to raise to the power of.
If you are trying do find out x it's 2. 2 to the fourth power equals sixteen.
Nine to the fourth power is written as 94, and is expanded as 9 x 9 x 9 x 9.
x to the ninth power OR x to the 9th power OR x^9
81 3² x 3² = 9 x 9
9^(4) = 9 x 9 x 9 x 9 = 81 x 81 = 6561
Multiply 9 by itself three times (9 x 9 x 9) to find out. That's what the third power means. For the fourth power, you'd multiply again.
4.61 x 106
7.4 x 10-4 = 0.00074
1, 3, 9 1, 3, 9, 27, 81 3 x 3 = 9 3 x 3 x 3 x 3 = 81
It is x1 which is x.
8.23 x 109 = 8,230,000,000
x to the 5th power times y to the fourth power
7 to the fourth power = 7 x 7 x 7 x 7 = 2401.