When solving an exponent such as -2^2, would you multiply by -2x-2, or -2x2? So in other words, do you have to multiply by a negative exponent for each?
2007-11-15 09:18:42 · 5 answers · asked by Kay 1 in Science & Mathematics ➔ Mathematics
without parentheses, the negative sign is considered to NOT be part of what's rasied to the power.
- 2^4 = - 16
(- 2)^4 = 16
(you can verify this yourself by typing each of these expressions in a calculator)
2007-11-15 09:22:46 · answer #1 · answered by Michael M 7 · 1⤊ 0⤋
You have to multiply -2 by -2 becase it is -2²
2007-11-15 09:22:25 · answer #2 · answered by Lee K 2 · 0⤊ 0⤋
if it is -2^2 then you multiply -2 x -2.
if it is -(2)^2 then you multiply -1x2x2
hope it helps
2007-11-15 09:22:39 · answer #3 · answered by Anonymous · 0⤊ 0⤋
-2x-2
always multiply the number by itself
all powers of two are positive too
2007-11-15 09:21:55 · answer #4 · answered by ? 3 · 0⤊ 0⤋
2 * 4^-2 2 * 1/(4^2) 2 * 1/16 which is: 2/16 simplifying: (2/2) / (16/2) so the answer is 1/8
2016-04-04 03:16:11 · answer #5 · answered by Anonymous · 0⤊ 0⤋