Zadanie 18. Ze zbioru zadań Matematyka 1.
Treść Zadania:
Oblicz wartość wyrażenia dla x = -3 :
a) 2 + 5x b) x² + 2(x + 3) c) x d) x²
_____ __________ _ - 3x _ + 0,25x
2 - x x² - 2 3 4
____ = Kreska ułamkowa.
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a)
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=
=
=
=
=
=
=![-2\frac{3}{5} -2\frac{3}{5}](https://tex.z-dn.net/?f=-2%5Cfrac%7B3%7D%7B5%7D)
b)
=
=
=
=
=
=![\frac{9}{7}=1\frac{2}{7} \frac{9}{7}=1\frac{2}{7}](https://tex.z-dn.net/?f=%5Cfrac%7B9%7D%7B7%7D%3D1%5Cfrac%7B2%7D%7B7%7D)
c)
=
=
=
=-1+9=
=8
d)
=
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=
=
=
=
=
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=![1\frac{1}{2} 1\frac{1}{2}](https://tex.z-dn.net/?f=1%5Cfrac%7B1%7D%7B2%7D)