SOLUTION: i have the equation to solve : (-1/2)^4-(1/2)^2+(-1/2)^3 and i know that the answer is -5/16 but i need help understanding how it got to this? thank you

Algebra ->  Expressions-with-variables -> SOLUTION: i have the equation to solve : (-1/2)^4-(1/2)^2+(-1/2)^3 and i know that the answer is -5/16 but i need help understanding how it got to this? thank you      Log On


   

Question 653014: i have the equation to solve : (-1/2)^4-(1/2)^2+(-1/2)^3 and i know that the answer is -5/16 but i need help understanding how it got to this? thank you
Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!
i have the equation to solve : (-1/2)^4-(1/2)^2+(-1/2)^3 and i know that the answer is -5/16 but i need help understanding how it got to this? thank you

FYI: This is not a equation as it doesn't have an equals sign. It's a fractional expression that needs to be SIMPLIFIED to one (1) fraction.

%28-+1%2F2%29%5E4+-+%281%2F2%29%5E2+%2B+%28-+1%2F2%29%5E3
1%5E4%2F2%5E4+-+1%5E2%2F2%5E2+-+1%5E3%2F2%5E3 ---- (-)_%5E4 = "+", and (-)_%5E3 = "-"
1%2F16+-+1%2F4+-+1%2F8

1%2F16+-+4%2F16+-+2%2F16 ----- Multiplying by LCD, 16

%281+-+4+-+2%29%2F16 ------ highlight_green%28-+5%2F16%29

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