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(-3/2)^2 + 3(-3/2) - 10

 Aug 31, 2016
 #1
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12.25

 Aug 31, 2016
 #2
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Simplify the following:
((-3)/2)^2+3×(-3)/2-10

 

3×(-3)/2 = (3 (-3))/2:
((-3)/2)^2+(3 (-3))/2-10

 

3 (-3) = -9:
((-3)/2)^2+-9/2-10

 

((-3)/2)^2 = (-3)^2/2^2:
(-3)^2/2^2-(9)/2-10

 

(-3)^2 = 9:
9/2^2-(9)/2-10

 

2^2 = 4:
9/4-(9)/2-10

 

Put 9/4-(9)/2-10 over the common denominator 4. 9/4-(9)/2-10 = 9/4+(2 (-9))/4+(4 (-10))/4:
9/4+(2 (-9))/4+(4 (-10))/4

 

2 (-9) = -18:
9/4+-18/4+(4 (-10))/4

 

4 (-10) = -40:
9/4-(18)/4+-40/4

 

9/4-18/4-40/4 = (9-18-40)/4:
(9-18-40)/4

 

9-18-40 = 9-(18+40):
9-(18+40)/4

 

9-58 = -(58-9):
-(58-9)/4


Answer: |(-49)/4

 Aug 31, 2016

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