Question

calculati;1,5×[6,4+2,2×(3,1²-4,61)]÷2

Answer 1

1,5·[6,4+2,2·($3,1^{2}$-4,61)]:2=
=1,5·[6,4+2,2·(9,61-4,61)]:2
=1,5·(6,4+2,2·5):2
=1,5·(6,4+11):2
=1,5·17,4:2
=26,1:2
=13,05

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