Przedstaw w najprostrzej postaci i podaj dziedzine wyrażenia:
a) (20x-5) / (4x³ - x²)
b) (6x² - 18x) / (9⁻³ - x)
a (20x-5) 5(4x-1) 5(4x-1) ---------=---------=----------- (4x³-x²) x²(2x²-1) x²(√2x-1)(√2x+1)b (6x²-18x) 6x(x-3) -----------=----------- (9⁻³-x) (1/9³-x) 1/9³ w ułamku
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a (20x-5) 5(4x-1) 5(4x-1)
---------=---------=-----------
(4x³-x²) x²(2x²-1) x²(√2x-1)(√2x+1)
b (6x²-18x) 6x(x-3)
-----------=-----------
(9⁻³-x) (1/9³-x)
1/9³ w ułamku