-3
(-5)
2 -5
(-2x )
Y
This is hard to write but the first is -5 to -3 power and the second is -2x squared over y to the -5 power.
Thanks in advance.
sorry i wrote it so wrong. i didn't know how to express powers in text.
You mad?
Favorite Answer
-5 ^ -3 = 1/-5 ^ 3
= 1/-125
What i wrote is:
negative 5 to the power of -3 is just the same as 1 over -5 to the power of 3.
If you don't understand how this is one of the index laws rules:
For example: x to the power of -2 = 1/x to the power of 2 in other words:
(x^-2) = 1/x^2
Keeping in mind that ^ means to the power of.
For the next one:
-2x^2/y^-5
Remember when it's a negative power you switch it over the fraction line and make it a positive negative.
So the answer is: -2x^2 + y^5/1 = -2x^2 + y^5
= 4xy^5
?
look on the perfect 2 coefficients interior the equation, ask your self, what numbers multiply to equivalent -5 and upload to equivalent 4? the answer is 5 and -a million: (5•-a million = -5 and 5 + -a million = 4) So now plug them into the x - r format: x^2 + 4x - 5 = (x - a million)(x + 5) = 0 now set each and each and every of the criteria equivalent to 0, remedy, and then you'll have your 2 solutions x - a million = 0 x = a million x + 5 = 0 x = -5
Kaye d
-5^-3 = -5 x -5 x -5 = +25 x -5
= -125
(-2x)^2 / (y^-5) =
4x^2 / y^5
Geometry Warrior
-5^(-3) = -1/125
(-2x)^2 / y^-5 =
4x^2y^5
ricefan24
ok so cross out the negatives and youll get 5 to the 3rd....125
the next one is difficult
you can not have a negative in a fraction so you would change it from the top to the bottom if its the -2
so you would get .....x squared y to the 5th
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2
can i hav the best answer please