# Add or subtract the following polynomials. (2a^3b+1)+(4a^3b+2)

Add or subtract the following polynomials.
$$\displaystyle{\left({2}{a}^{{3}}{b}+{1}\right)}+{\left({4}{a}^{{3}}{b}+{2}\right)}$$

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Arnold Odonnell
Given polynomial are $$\displaystyle{\left({2}{a}^{{3}}{b}\right)}$$ and $$\displaystyle{\left({4}{a}^{{3}}{b}+{2}\right)}$$
On adding these two polynomials, resultant polynomial is
$$\displaystyle{\left({2}{a}^{{3}}{b}+{1}\right)}+{\left({4}{a}^{{3}}{b}+{2}\right)}$$
$$\displaystyle={\left({2}{a}^{{3}}{b}+{4}{a}^{{3}}{b}\right)}+{3}$$
$$\displaystyle={6}{a}^{{3}}{b}+{3}$$
So, resultant polynomial is $$\displaystyle{6}{a}^{{3}}{b}+{3}$$