2. Упростите выражение: в) $$\frac{5}{12}$$(4,8p - 4$$\frac{4}{5}$$k) - 4,5($$\frac{4}{9}$$p - 0,4k).

в) Упростим выражение: $$\frac{5}{12}$$(4,8p - 4$$\frac{4}{5}$$k) - 4,5($$\frac{4}{9}$$p - 0,4k) = $$\frac{5}{12}$$($$\frac{48}{10}$$p - $$\frac{24}{5}$$k) - $$\frac{45}{10}$$($$\frac{4}{9}$$p - $$\frac{4}{10}$$k) = $$\frac{5}{12}$$($$\frac{24}{5}$$p - $$\frac{24}{5}$$k) - $$\frac{9}{2}$$($$\frac{4}{9}$$p - $$\frac{2}{5}$$k) = $$\frac{5⋅24}{12⋅5}$$p - $$\frac{5⋅24}{12⋅5}$$k - $$\frac{9⋅4}{2⋅9}$$p + $$\frac{9⋅2}{2⋅5}$$k = 2p - 2k - 2p + $$\frac{9}{5}$$k = (2 - 2)p + (-2 + $$\frac{9}{5}$$)k = 0p + (-$$\frac{10}{5}$$ + $$\frac{9}{5}$$)k = -$$\frac{1}{5}$$k = -0.2k