2007-08-30 18:36:40 · 4 answers · asked by doughboy 1 in Science & Mathematics ➔ Mathematics
(2x)^(-2) = 1 / (2x)² = 1 / 4x²
2007-08-30 20:35:43 · answer #1 · answered by Como 7 · 1⤊ 0⤋
Ben is Great. YAY Ben.
Negative exponents refer to the following property:
a^(-m)=1/(a^m)
Basically you flip the base and get rid of the negative sign on the exponent. For example:
3^(-2) = 1/(3^2)
for (2x)^(-2), 2x is the base...therefore you "flip" the 2x on the bottom and get rid of the negative on the exponent:
(2x)^(-2)=1/((2x)^2)
Now simplify the bottom portion (2x)^2 by squaring 2x which will give you 4(x)^2
Your final answer is 1/(4(x^2))
2007-08-31 01:47:18 · answer #2 · answered by math_man 2 · 0⤊ 1⤋
2x^-2 = 2*(1/x^2)
2007-08-31 01:44:42 · answer #3 · answered by Anonymous · 0⤊ 0⤋
go to hell
2007-08-31 01:41:03 · answer #4 · answered by Anonymous · 0⤊ 0⤋