SOLUTION: PLease help to evaluate : x^2 - x^3y - xy if x = -1/2 and y = -1/4

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Question 68364This question is from textbook An Incremental Development
: PLease help to evaluate :
x^2 - x^3y - xy if x = -1/2 and y = -1/4 This question is from textbook An Incremental Development

Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
X^2-X^3Y-XY
(-1/2)^2-(-1/2^3*-1/4)-(-1/2*-1/4)
1/4-(-1/8*-1/4)-(1/8)
1/4-(1/32)-1/8
1/4-1/32-1/8 TO ADD THESE FRACTION YOU NEED TO FIND A COMMON DENOMINATOR
(32 WORKS BECAUSE 4 & 8 ARE FACTORS OF 32)
(1*8-1*1-1*4)/32
(8-1-4)/32
3/32