-2
2
-4
-1 to the power of four equals -1 times -1 times -1 times -1. -1 times -1 equals 1 (since a negative times a negative equals a positive). (1 to the power of 2) 1 times -1 equals -1 (since a negative times a positive equals a negative). (1 to the power of 3) -1 times -1 equals 1. (1 to the power of 4)
x^-1 * x^-1 =x^(-1 + -1) =x^-2 or alternatively: 1/x times 1/x =1/x^2 (1/x^2) is the same as (x^-2)
1/3 x -2 = -2/3
240
The answer is "negative three halfs." (- 3/2) or _ 1 1/2 The equation is: -2/3 (x) = 1 -x = 3/2 x = -3/2 (aka negative one and one half)
1
1.5 or 1 and 1/2
-1 to the power of four equals -1 times -1 times -1 times -1. -1 times -1 equals 1 (since a negative times a negative equals a positive). (1 to the power of 2) 1 times -1 equals -1 (since a negative times a positive equals a negative). (1 to the power of 3) -1 times -1 equals 1. (1 to the power of 4)
negative two-thirds
+1/2
Negative times negative is positive. Negative 2 times negative 2 equals positive 4.
2-1 x 2-2 = 2-1 + -2 = 2-3 = 1/8, or one eighth.
x^-1 * x^-1 =x^(-1 + -1) =x^-2 or alternatively: 1/x times 1/x =1/x^2 (1/x^2) is the same as (x^-2)
y = 1/2x y = 1/2 times x to the negative 1 ( 1/2 x^-1) The slope is from differential calculus: slope = dy/dx = -1/2 times x to the negative 2 = -1/2x^2
-7
Negative plus a negative is a negative. Ex. -1+-1=-2 Negative times a negative is a positive. -2*-2=4 But a negative [minus] plus a positive [plus] can be minus, zero or plus: For example, -3 + 2 = -1 -3 + 3 = 0 -3 + 4 = +1
A negative times a negative times a negative (NxNxN) is a : Negative!!! Negative times a negative is positive. A positive times a negative is a negative. Remember if you are multiplying an odd number of negatives irrespective of the number of positives, it is always a negative. If you are multiplying an even number of negatives then the answer is a positive. EX: -2 x -1 x -2 ( 3 negatives so answer is negative) 2 x -2 -4 -3x-5x-1x-1x2x1 ( 4 negatives so answer is positive) 15x1x2 30