# How to add. x3-16x 2×3+9×2+4x 2×3+x2-28x

Welcome to my article How to add. x3-16x, 2×3+9×2+4x, 2×3+x2-28x This question is taken from the simplification lesson.
The solution of this question has been explained in a very simple way by a well-known teacher by doing addition, subtraction, and fractions.
For complete information on how to solve this question How to add. x3-16x, 2×3+9×2+4x, 2×3+x2-28x, read and understand it carefully till the end.

Let us know how to solve this question How to add. x3-16x, 2×3+9×2+4x, 2×3+x2-28x.

First write the question on the page of the notebook

## How to add. x3-16x, 2×3+9×2+4x, 2×3+x2-28x

First of all write this question properly,

\displaystyle {{x}^{3}}-16x,\text{ }2{{x}^{3}}+9{{x}^{2}}+4x,\text{ }2{{x}^{3}}+{{x}^{2}}-28x

\displaystyle ({{x}^{3}}-16x)+(\text{ }2{{x}^{3}}+9{{x}^{2}}+4x)+\text{ (}2{{x}^{3}}+{{x}^{2}}-28x)

\displaystyle {{x}^{3}}-16x+2{{x}^{3}}+9{{x}^{2}}+4x+\text{ }2{{x}^{3}}+{{x}^{2}}-28x

\displaystyle {{x}^{3}}+2{{x}^{3}}+\text{ }2{{x}^{3}}-16x+9{{x}^{2}}+4x+{{x}^{2}}-28x

\displaystyle {{x}^{3}}+2{{x}^{3}}+\text{ }2{{x}^{3}}+9{{x}^{2}}+{{x}^{2}}-16x+4x-28x

\displaystyle 5{{x}^{3}}+10{{x}^{2}}-12x-28x

\displaystyle 5{{x}^{3}}+10{{x}^{2}}-40x

\displaystyle 5x({{x}^{2}}+2x-8)

\displaystyle 5x({{x}^{2}}+4x-2x-8)

\displaystyle 5x[x(x+4)-2(x+4)

## \displaystyle 5x[(x+4)(x-2)] [Answer]

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