8^3 = 8 x 8 x 8 = 64 x 8 = 512
We know that a logarithm is an exponent. Let x^8 = a. For x > 0, x is different than 1, and a > 0, x^8 = a is equal to the log with base x of a = 8
x2 = 8xx2- 8x = 0x(x - 8) = 0x = 0 ;x - 8 = 0x = 8
x2 - 7x = 8 x2 - 7x - 8 = 0Now find two numbers that multiply to equal -8, and add to equal -7.(1) * (-8) = -8(1) + (-8) = -7(x+1)(x-8) = 0 This is the factored form of x2 - 7x = 8You can then solve the equation if necessary, and get:x = -1 or x = +8
If: x^2 +2x -8 then it is (x-2)(x+4) when factored
x = -8 because -(-8) = 8
112
3 x 8 x 8 is equal to 192.
8 x 2.3 = 18.4
-8
1 x 8, 2 x 4 = 8
2 x 4 x 8 x 10 is equal to 640.
8 x 24 is equal to 192.
-30
1 x 8, 2 x 4.
8
The reciprocal of any number x is equal to 1/x. In this instance, the reciprocal of -8 is equal to 1/-8.