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Multiply the single term $3$ by each term of the polynomial $\left(a+b\right)$
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$derivdef\left(3a+3b-2a-2b\right)$
Learn how to solve definition of derivative problems step by step online. Find the derivative of 3(a+b)-2a-2b using the definition. Multiply the single term 3 by each term of the polynomial \left(a+b\right). Combining like terms 3a and -2a. Combining like terms 3b and -2b. Find the derivative of a+b using the definition. Apply the definition of the derivative: \displaystyle f'(x)=\lim_{h\to0}\frac{f(x+h)-f(x)}{h}. The function f(x) is the function we want to differentiate, which is a+b. Substituting f(x+h) and f(x) on the limit, we get.