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10x+6 ≥0 i 9-x >0
10x≥-6 i x< 9
x≥-6/10
x≥- 3/5
D: x ∈ <-3/5 ;9)
2
a)
Pierwszy pierwiastek x = 2
x⁵ - 2x⁴ - x + 2 : (x-2) = x⁴ - 1
-(x⁵ - 2x⁴)
----------------------
=======-x + 2
- (-x + 2)
--------------------------------
===============
b)
Pierwszy pierwiastek x = 1
x⁴ - 3x³ +4x² - 6x+4 : (x-1) = x³ - 2x² + 2x +4
-(x⁴ - x³)
--------------------------------
=== - 2x³ + 4x² - 6x + 4
-( -2x³ + 2x²)
----------------------------------
=========2x² - 6x + 4
-( 2x² - 2x )
-----------------------------------------
===========-4x + 4
-( -4x + 4)
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===========================