Oblicz wartosć liczbową wyrażenia:
a) (a + 2)h dla a = 7 i h = 1/3
b) -x + 2y - 3 dla x = -5 i y = -4
2. a)(a+2)h (7+2)*1/3=9*1/3=3 b)-x+2y-3 -(-5)+2*(-4)=5-8=-3
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2.
a)(a+2)h
(7+2)*1/3=9*1/3=3
b)-x+2y-3
-(-5)+2*(-4)=5-8=-3