2 a + 3 b , 5 c - 4,8 a + 6,4 c - 9
Evaluate
\frac{3bc}{2}+\frac{32c}{5}-\frac{14a}{5}-9
Differentiate w.r.t. a
-2,8
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2a+1,5bc-4,8a+6,4c-9
Multiply 3 and 0,5 to get 1,5.
-2,8a+1,5bc+6,4c-9
Combine 2a and -4,8a to get -2,8a.
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