Question 431748
-x² + 8x - 16
--------------
x³ - 4x²



-1(x² - 8x + 16)
---------------- {factored -1 out of top and x² out of bottom}
x²(x - 4)


-1(x - 4)(x - 4) 
---------------- {factored top into two binomials}
x²(x - 4)


-1(x - 4)
---------- {cancelled x - 4 on top and bottom}
x²
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