Odpowiedź:
[tex] {( - 2 \frac{1}{4} )}^{2} = {( - \frac{9}{4} )}^{2} = \frac{9 \times 9}{4 \times 4 } = \frac{81}{16} = 5 \frac{1}{16} [/tex]
mnożenie dwóch minusów daje plus
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Odpowiedź:
[tex] {( - 2 \frac{1}{4} )}^{2} = {( - \frac{9}{4} )}^{2} = \frac{9 \times 9}{4 \times 4 } = \frac{81}{16} = 5 \frac{1}{16} [/tex]
mnożenie dwóch minusów daje plus