Evaluate: -7 - 8
Evaluate -6 to the power of 2
It is: 8+7 = 15
8
7 x 7 = 49
It is the same as 8 times 8 = 64
2^7 = 2x2x2x2x2x2x2 = 4x4x4x2 = 16x8 = 128
The answer is 1, whatever the value of a.
5
If m = 7, then 15m is equal to 15 x 7 = 105
(7 x 8) - (2 x 1.5) + 8 56 - 3 + 8 = 61
8/7 to the power of -3 is 0.669921875