September 2019 0 11 Report
1.8. Wykonaj działania:
a) \: {2}^{2} + {3}^{2} - {4}^{2} ,
b) \: {10}^{2} + {1}^{2} - {11}^{2} ,
c) \: {3}^{2} + {4}^{2} - {5}^{2} ,
d) \: {6}^{2} - {4}^{2} - {2}^{2} ,
e) \: {5}^{2} + {10}^{2} - {12}^{2} ,
f) \: {( - 4)}^{2} - {6}^{2} + {2}^{2}.
Uwaga:
 { - 4}^{2} = -16 , {( - 4)}^{2} = 16.
1.9. Wykonaj działania:
a) \: 3 \times {4}^{2} - 5 \times {2}^{2} + 7 ,
b) \: - 2 \times {3}^{2} - 3 \times { ( - 5)}^{2} + 6,
c) \: - 10 \times {2}^{2} + 15 \times {3}^{2} - 63 ,
d) \: 8 \times {6}^{2} - {9}^{2} + {11}^{2}.

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