(x-1)^2-(x-1)*(x+1) dla x=√3-1
Najpierw doprowadzimy wyrazenie do prostszej postaci:
x²-2x+1-(x²-1)=x²-2x+1-x²+1=2-2x
2-2(√3-1)=2-2√3+2=4-2√3
(x-1)²-(x-1)*(x+1) dla x=√3-1
x² - 2x + 1 -x² + 1 = -2x + 2
-2(√3-1) + 2 = -2√3 +2+2 =4-2√3
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Najpierw doprowadzimy wyrazenie do prostszej postaci:
x²-2x+1-(x²-1)=x²-2x+1-x²+1=2-2x
2-2(√3-1)=2-2√3+2=4-2√3
(x-1)²-(x-1)*(x+1) dla x=√3-1
x² - 2x + 1 -x² + 1 = -2x + 2
-2(√3-1) + 2 = -2√3 +2+2 =4-2√3