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Factor the difference of cubes 1331x3 - 8

User Iamkdblue
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2 Answers

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Formula: (x-y)(x²+xy+y²) --- x = 11x, y = 2

(11x-2)(121x²+22x+4)

User Aleator
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3 votes

Answer:


\bold{(11 x-2)\left(121 x^(2)+22 x+4\right)}

Given:


1331 x^(3)-8

Explanation:

In this problem, we need to find the factors of the given expression.

The factors of a given number/expression are the numbers/expressions which results in given number on multiplying.

The given expression is in an algebraic expression which is:


x^(3)-y^(3)=1331 x^(3)-8

On giving the cube forms,


\Rightarrow x^(3)-y^(3)=(11 x)^(3)-(2)^(3)

Now, the factored form of the above expression is:


x^(3)-y^(3)=(x-y)\left(x^(2)+x y+y^(2)\right)

Now,


\therefore(11 x)^(3)-(2)^(3)=(11 x-2)\left(121 x^(2)+22 x+4\right)

The above given is the factor for the given difference in the cube.

User Steve Knight
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