SOLUTION: {{{-3^3-(-3/2)^3-(1/3)^2}}}= The -3/2 is written as -1 and a 1/2 in the problem. The answer is -23 and 53/72 but I get -24 and 19/72.

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: {{{-3^3-(-3/2)^3-(1/3)^2}}}= The -3/2 is written as -1 and a 1/2 in the problem. The answer is -23 and 53/72 but I get -24 and 19/72.       Log On


   

Question 1090864: -3%5E3-%28-3%2F2%29%5E3-%281%2F3%29%5E2=
The -3/2 is written as -1 and a 1/2 in the problem.
The answer is -23 and 53/72 but I get -24 and 19/72.
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
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-3%5E3-%28-3%2F2%29%5E3-%281%2F3%29%5E2=
The -3/2 is written as -1 and a 1/2 in the problem.
The answer is -23 and 53/72 but I get -24 and 19/72.
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What?

Starting with the expression shown, -3%5E3-%28-3%2F2%29%5E3-%281%2F3%29%5E2

cross%28-27-%28-1%29%283%2F2%29%5E2-%281%2F3%29%5E2%29, mistake in exponent
-
-27-%28-1%2927%2F8-1%2F9

-27%2B27%2F8-1%2F9
.
.


Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

-3%5E3-%28-3%2F2%29%5E3-%281%2F3%29%5E2=
The -3/2 is written as -1 and a 1/2 in the problem.
The answer is -23 and 53/72 but I get -24 and 19/72.
Why am I not surprised that this DUDE is wrong? Because he always is! Never, ever think of getting a correct answer when this person tries to help!

-3%5E3-%28-3%2F2%29%5E3-%281%2F3%29%5E2=

-+27+-+%28-+27%2F8%29+-+%281%2F9%29 ------ Getting rid of exponents

-+27+%2B+27%2F8+-+1%2F9 ------------ Getting rid of parentheses		

%22-+1%2C944%22%2F72+%2B+243%2F72+-+8%2F72 ----- Multiplying each fraction by LCD, 72

highlight_green%28matrix%281%2C3%2C+%22-+1%2C709%22%2F72%2C+%22=%22%2C+-+23%2653%2F72%29%29 <===== This is the CORRECT answer, and the one you acknowledge as being CORRECT

Don't even look at that dude's attempt.