bigJ4864
16.12.2020 •
Mathematics
The chemical equation describing the burning of hydrogen gas is: 2H2 + O2 ---> 2H2O. Why is this both a synthesis and a combustion reaction?
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Ответ:
(x+9) (x+2)
Step-by-step explanation:
x^2+11x+18
x^2+9x+2x+18
x(x+9)+2(x+9)
(x+9) (x+2)