SOLUTION: Good evening ma'am or sir, would you please help me on how to solve these 4 equations : 1). 48ab^2c(4abc^0)^-2 2). 3x^0-n^-2 / -(3m-n) 3). (144*125 / 2^3*3^2)^-1 4). ab^-2 -

SOLUTION: Good evening ma'am or sir, would you please help me on how to solve these 4 equations : 1). 48ab^2c(4abc^0)^-2 2). 3x^0-n^-2 / -(3m-n) 3). (144125 / 2^33^2)^-1 4). ab^-2 -

Question 118813: Good evening ma'am or sir, would you please help me on how to solve these 4 equations :
1). 48ab^2c(4abc^0)^-2
2). 3x^0-n^-2 / -(3m-n)
3). (144*125 / 2^3*3^2)^-1
4). ab^-2 - a^-2b
Thank you very much ma'am or sir for your generosity. :)
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
How to solve these 4 equations :
:
These are not equations (no equal sign), you can't solve them;.
You can factor/simplify them, which is probably what you want you to do:
:
1).
:
First of all any number, raised to ^0 = 1 so we can write:

:
A negative exponent can be made positive by using the reciprocal, so we have:

:
Square each term inside the brackets (denominator)

:
CAncel and you have:

:
:
2). :
Follow the rules that we illustrated in the 1st one:
The reciprocal gets rid of the neg exponent, removing the bracket changes the signs
;
:
Put the numerator into a single fraction form

:
Which is:
* = =
:
:
3).
Do the math and invert to get rid of the ^-1:
= = =
:
:
4). = - ; using the reciprocals to get rid of the negative exponents
To put this over a single denominator:

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