The equation (2x2 - 1)(3x+2) = (2x2)(3x) + (2x2)(2)+(-1)(3x)+(-1)(2) is an example of which method/property?

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demigod0701

26.06.2022

Mathematics

Current amount of gas: $\frac{1}{10} t$

After adding 11 gallons: $\frac{1}{10} t$ + 11 = $\frac{3}{5} t$

11 = $\frac{3}{5} t$ - $\frac{1}{10} t$

11 = $\frac{6}{10} t$ - $\frac{1}{10} t$

11 = $\frac{5}{10} t$

11 = $\frac{1}{2} t$

22 = t

22 gallons

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